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How Long Does It Take to Learn Mandarin? Hours and Years

The short answer: for an English speaker, basic travel Mandarin takes about 100–250 hours of study, which is a few months at an hour a day. Simple everyday conversation takes roughly 350–550 hours, or a year or so at an hour a day. Professional fluency takes years: the US Foreign Service Institute (FSI) schedules 88 weeks, or 2,200 class hours, of full-time training for Mandarin, one of its hardest languages.
Count hours, not months. The same 500 hours is six months for someone studying three hours a day and over two years for someone doing 30 minutes.
How Long It Takes to Learn Mandarin, by Goal
| Goal | What you can do | Rough study hours | At 1 hour a day | At 3 hours a day |
|---|---|---|---|---|
| Survival / travel (HSK 1–2) | Greet people, order food, ask directions, handle numbers and prices | 100–250 | 3–8 months | 1–3 months |
| Everyday conversation (HSK 3) | Simple, direct chats about daily life and familiar topics | 350–550 | 1–1.5 years | 4–6 months |
| Working Mandarin (HSK 4–5) | Talk about a wide range of topics, read simple news, use Chinese in a non-specialist job | 700–1,800 | 2–5 years | 8–20 months |
| Fluent / professional (HSK 6 and beyond) | Follow meetings, films and the news; discuss abstract subjects with nuance | 2,200–3,500+ | 6–10 years | 2–3 years |
The hours are our own estimates, not official figures. The top row is anchored to the FSI: its students aim for professional working proficiency (level 3 on the ILR scale, for speaking and listening) in 88 weeks of about 23 hours of class and 17 hours of self-study a week, which is roughly 3,500 hours in all. The HSK levels are the six-level HSK 2.0 exam. The new HSK 3.0 levels use bigger word lists; see how many words you need to become fluent.
Two things move you up or down this table more than anything else: how many focused hours you put in, and whether those hours include speaking and listening rather than just flashcards.
Can You Learn Mandarin in Six Months?
You can learn useful Mandarin in six months. You can't become fluent in six months from scratch: even the FSI's full-time students, with about 40 hours of class and self-study a week, are given 88 weeks. What six months gets you depends on your daily hours:
- 30–60 minutes a day (90–180 hours): survival Mandarin. You can read pinyin, hear and say the tones, introduce yourself, order food, ask prices and directions, and know a few hundred words. That's about HSK 1, or HSK 2 at the top of the range.
- 2–3 hours a day (360–550 hours): basic conversation. You can hold simple chats about your day, your work and your plans with a patient speaker, around HSK 3, provided some of those hours are spent speaking.
- Full time, 6–8 hours a day (about 1,100–1,400 hours): for example an intensive course in China or Taiwan. You can get to around HSK 4, sometimes HSK 5: comfortable everyday conversation, but films, the news and fast native speech will still be hard.
To get the most out of six months, spend the first few weeks on pinyin and tones, then learn the most common 500–1,000 words in whole sentences rather than as single words, and speak from the first week. Mandarin Mosaic's HSK 1 and 2 lesson packs are built for this stage: each sentence adds one new word to words you already know (i+1), and spaced repetition brings it back before you forget it.
Can You Learn Mandarin in a Year?
In a year you can reach real everyday conversation, and with enough hours you can reach a level where Chinese is useful at work. Fluency in a year is only realistic for full-time learners who already have a good base.
- 1 hour a day (about 365 hours): HSK 2–3. You can manage travel and simple conversations on familiar topics, and read short, simple texts.
- 2 hours a day (about 730 hours): around HSK 4. You can talk about a wide range of everyday topics with native speakers without it being a struggle. It's a demanding pace that treats Chinese as a part-time job, but it's achievable if you keep it up every week.
- Full time (about 2,000 hours): around HSK 5. You can read the news with a dictionary and work in Chinese on familiar subjects. For comparison, the FSI plans about 3,500 hours of class and self-study to reach professional proficiency.
Whatever your pace, the hours have to include listening and speaking, not just reviewing words. A learner who knows 2,000 words but has never spoken will struggle in a conversation that a learner with 1,000 words and a weekly tutor handles easily.
Mandarin Timelines by HSK Level and Weekly Study Hours
To make the targets concrete, the table below maps each level of the Hanyu Shuiping Kaoshi (HSK), the official Chinese proficiency test, to rough total hours and to how long that takes at three study paces. HSK 2 means you can handle simple, direct chats on familiar topics. HSK 4 means you can discuss a much wider range of subjects with native speakers. HSK 6 means you can understand complex material and express yourself with real nuance.
These are estimates. The quality of your study matters as much as the quantity of hours: focused study with speaking practice shortens these timelines, and passive study lengthens them.
| HSK Level | Vocabulary | Rough total hours | Low Intensity (3-5 hrs/week) | Medium Intensity (7-10 hrs/week) | High Intensity (15-20 hrs/week) |
|---|---|---|---|---|---|
| HSK 1 | 150 words | 60–100 | 3-6 months | 1.5-3 months | 3-6 weeks |
| HSK 2 | 300 words | 150–250 | 9-15 months | 4-7 months | 2-3.5 months |
| HSK 3 | 600 words | 350–550 | 1.5-3 years | 9-15 months | 5-7 months |
| HSK 4 | 1,200 words | 700–1,000 | 3.5-5 years | 1.5-2.5 years | 9-13 months |
| HSK 5 | 2,500 words | 1,200–1,800 | 6-9 years | 2.5-4 years | 1.5-2 years |
| HSK 6 | 5,000+ words | 2,200–3,000 | 11-15 years | 5-7 years | 2.5-3.5 years |
These word counts are for the HSK 2.0 levels, and the paces assume about 200, 450 and 900 hours a year. The low-intensity column shows why weekly hours matter: a few hours a week gets you to everyday conversation, but the higher levels need more time each week, or a lot of patience.
So, What Does "Fluent" in Mandarin Actually Mean to You?
Before we can even begin to talk about timelines, we need to get one thing straight: what does "learning Mandarin" or being "fluent" actually mean to you? It's a slippery word. For one person, it might mean being able to order a bowl of beef noodles on a holiday in Shanghai. For another, it's about confidently negotiating a business deal in a Beijing boardroom.
Think of it this way: your personal finish line dictates the length and difficulty of the race. If you don't have a clear target, you're just running blind. Nailing down a specific, achievable goal is the absolute first step. It's what will keep you grounded and motivated when the going gets tough.
From Tourist to Tycoon: What Does Your Fluency Look Like?
Let's break down what different levels of Mandarin ability look like in the real world. As you read these, think about which one really resonates with your own ambitions. Are you just aiming for a bit of casual chat, or do you need this for your career?
Survival Mandarin: Your mission is simple: navigate a trip without any major hiccups. You want to ask for directions, point at a menu and get what you want, handle a bit of haggling at the market, and introduce yourself. Your focus is purely on practical, high-frequency phrases.
Conversational Mandarin: You're ready to move beyond the basics and actually connect with people. This means you can hold a decent conversation about everyday things, follow the gist of a TV show, and share your own thoughts and feelings without too much trouble.
Professional or Academic Mandarin: This is the deep end. You're aiming for mastery. You need to follow nuanced discussions, read complex stuff like newspapers or academic articles, and express yourself with precision and sophistication in a professional setting.
Pinpointing where you want to land is so important because it directly shapes how much time and effort you'll need to put in. Each of these goals maps pretty neatly onto the official Chinese proficiency test, the Hanyu Shuiping Kaoshi (HSK).
Mapping Your Goals to HSK Levels
The HSK framework is a fantastic way to turn a vague ambition into a concrete set of milestones. It's a standardised system that breaks Mandarin proficiency down into clear levels, each with its own vocabulary and grammar targets. It helps you answer that "how long will it take?" question by giving you tangible goals to aim for.
Think of the HSK levels like floors in a building. You can't just teleport to the fifth floor; you have to go through the first four. Each level builds on the last, giving you a clear, structured path to the top.
Here’s a rough idea of how your personal goals might line up with the HSK:
HSK 2-3 (Survival to Basic Conversation): At this point, you've got about 300-600 words under your belt. You can handle most travel situations and have simple, direct chats on topics you know well. This is the perfect target for a tourist or a casual learner just dipping their toes in.
HSK 4 (Solid Conversational Fluency): This is a huge milestone for most learners. It requires knowing 1,200 words, and hitting it means you can chat about a wide range of topics with native speakers without it feeling like a massive struggle. It's often seen as the baseline for working in a Chinese-speaking environment in a non-specialist role.
HSK 5-6 (Advanced to Near-Native Proficiency): Now we're talking. With a vocabulary of 2,500 to over 5,000 words, you're operating at a very high level. You can read Chinese newspapers, watch films without subtitles, and dive into complex or abstract discussions. This is essential for anyone heading to university or taking on a high-level professional job in China.
By figuring out your target HSK level, you take a fuzzy wish like "I want to be fluent" and turn it into something you can actually measure. This clarity doesn't just give you a roadmap; it makes the whole massive undertaking feel a lot less intimidating.
The Three Factors That Control Your Learning Speed
Ever wonder why some people seem to absorb Mandarin at lightning speed while others struggle for years? It’s not some hidden talent or a special "language gene." The truth is, it almost always boils down to three critical things: your study intensity, the quality of your methods, and your consistency.
Think of it like building a house. Intensity is how big your construction crew is. Your Method is the quality of your blueprints and tools. And Consistency is simply showing up to the worksite every single day, rain or shine. If you neglect any one of these, progress slows to a crawl.
Factor 1: Intensity
Intensity is all about the raw number of hours you put in each week. It’s pretty straightforward: a learner who commits to 15-20 hours per week is going to see results much faster than someone only managing 3-5 hours. The more time you invest, the quicker you’ll climb the proficiency ladder.
But it’s not just about clocking hours. The quality of that time matters immensely. One hour of deep, focused study is worth far more than three hours of passively listening to a podcast while scrolling through your phone.
Factor 2: Method
This is probably the most important factor of all, because it dictates the value of every single hour you study. Using a poor method is like trying to build that house with flimsy tools and confusing blueprints—you’ll put in the effort but get nowhere fast. A classic example of a weak method is rote memorisation of isolated vocabulary lists.
On the flip side, a smart method like sentence mining makes every minute count. When you learn new words within the context of real sentences, your brain naturally picks up on grammar and usage patterns. It helps you build an intuitive feel for the language, something that sterile flashcards can never give you.
Factor 3: Consistency
Consistency is the glue that holds everything together. It’s the simple habit of showing up every day, even when you’re not feeling particularly motivated. Studying for 30 minutes every single day is far more effective than a four-hour cram session once a week.
This regular, daily exposure keeps the language fresh in your mind, allowing your brain to forge stronger neural connections over time. Consistency is what turns fleeting effort into permanent knowledge.
The formula isn't just about putting in the hours. It's about putting in focused hours, using an effective method, and doing it day in and day out. This combination is what truly accelerates your path to fluency.
These factors help explain why official estimates for learning Mandarin can vary so wildly. The US Foreign Service Institute, for example, puts professional working proficiency at around 2,200 classroom hours (about 88 weeks of full-time study) for native English speakers, placing Mandarin in its hardest category. Mandarin is a high-difficulty language, so plan for a marathon, not a sprint.
But the good news is you are in control. By optimising these three factors—committing to focused hours, choosing a smart method like sentence mining, and building a daily study habit—you can take charge of your learning speed and turn a distant goal into an achievable reality.
Building a Sustainable Mandarin Study Schedule
Knowing the theory is one thing, but putting it into practice is where the real work begins. Progress in Mandarin doesn't just happen; it’s the result of consistent, daily effort. A well-structured study schedule is what turns your goal from a vague dream into a concrete plan, giving you a clear idea of your timeline by defining your weekly commitment.
A routine that actually works has to be built around your life, not the other way around. It's the key to avoiding burnout while making sure you're getting somewhere. The secret is to find a rhythm that feels manageable and then, most importantly, stick with it.
The Casual Learner Plan (3-5 Hours Per Week)
If you're juggling a full-time job, family, or other big commitments, this is the plan for you. The aim here is consistency over intensity. Think of it as making small, regular deposits into your language bank. Even with limited time, you can make real headway towards basic conversation.
This approach is all about high-impact activities you can slot into the little gaps in your day.
- Daily SRS Review (15 mins): Use an app like Mandarin Mosaic to review vocabulary with spaced repetition. This is your non-negotiable daily habit and the most efficient use of your time.
- Active Listening (20-30 mins, 3x a week): Pop on a beginner podcast or graded reader audio during your commute or while doing chores.
- New Sentences (20 mins, 2x a week): Set aside a couple of sessions to learn new vocabulary in context by sentence mining.
The Serious Student Plan (7-10 Hours Per Week)
This one is for learners aiming for conversational fluency (around HSK 4) in about two years. It’s a bigger commitment, turning Mandarin study from a casual hobby into a proper project. You’ll be looking at roughly an hour a day, with a little extra time on the weekends.
Here, you’ll balance all four core skills: listening, speaking, reading, and vocabulary building.
- Daily SRS Review (20 mins): Keep your vocabulary sharp and growing. The principles of spaced repetition are absolutely vital at this stage for hanging onto a larger bank of words.
- Listening & Reading (30 mins, 5x a week): Get stuck into content that’s just a little bit above your current level. This could be watching a Chinese drama with subtitles or working through a graded reader.
- Speaking Practice (30-60 mins, 1-2x a week): Find a language partner or a tutor. You have to actively speak to make what you've learned stick.
- Sentence Mining (30 mins, 3x a week): Consistently add new, level-appropriate sentences to your study deck. This is how you’ll expand your vocabulary and build that intuitive feel for grammar.
For those committing to 10 hours a week, a balanced schedule is crucial. You want to make sure you're not neglecting any one skill. A typical week could look something like this:
Example Weekly Study Plan for Intermediate Learners (10 Hours)
| Day | Morning (30 mins) | Lunch (30 mins) | Evening (60 mins) |
|---|---|---|---|
| Monday | SRS Review + New Sentences | Listening (Podcast) | Reading (Graded Reader) |
| Tuesday | SRS Review + New Sentences | Listening (Podcast) | Speaking Practice (Tutor) |
| Wednesday | SRS Review + New Sentences | Listening (Podcast) | Reading (News Article) |
| Thursday | SRS Review | Watching (C-Drama) | Sentence Mining |
| Friday | SRS Review | Listening (Podcast) | Speaking Practice (Partner) |
| Saturday | SRS Review + New Sentences | Reading (Graded Reader) | Watching (Film) |
| Sunday | Catch-up & Review | Relax | Relax |
This kind of structure ensures you're hitting all the important areas without getting bored or burnt out. Sunday is left flexible for catching up or just taking a well-earned break.
The Immersion-Focused Plan (15+ Hours Per Week)
This intensive path is for learners on a mission. Maybe you have a time-sensitive goal like moving to China or starting a new job. It means treating Mandarin learning like a part-time job, dedicating 2-3 hours or more each day to focused study and practice.
This level of intensity can seriously cut down your timeline to fluency, but you have to plan carefully to avoid burning out. Your schedule needs to be varied and engaging, mixing up different activities to keep your motivation high and your mind fresh.
A typical day might break down like this:
- Morning (60 mins): Start the day with new sentence mining and your SRS review.
- Afternoon (60 mins): Immerse yourself by reading Chinese news articles or watching a film.
- Evening (60 mins): Put your learning into practice with speaking practice with a language exchange partner.
Ultimately, the best schedule is the one you can actually stick to. Start with a realistic plan, keep an eye on your progress, and don't be afraid to tweak it as life happens. Consistency, even in small doses, is the engine of progress in Mandarin.
Why Sentence Mining Outpaces Traditional Methods
Sooner or later, many Mandarin learners hit a wall. It’s a frustrating place to be. You might have memorised hundreds, even a thousand, individual words from flashcard apps, but still find yourself completely stuck when trying to build a proper sentence. This is a classic side effect of old-school learning, especially the habit of drilling isolated vocabulary lists.
Learning words in a vacuum is like collecting a pile of bricks without ever seeing a blueprint. You’ve got the raw materials, sure, but you have no clue how they actually fit together to create something meaningful. Your brain learns a word like ‘饭’ (fàn, cooked rice or a meal), but it forms no real connection to the grammar, context, or common phrases where that word naturally lives.
This is exactly where traditional methods tend to fall flat. Rote memorisation might get you through a vocab quiz, but it does next to nothing for building the intuitive grasp you need for a real conversation. You end up mentally translating word-for-word, producing clunky, unnatural sentences that just don't sound right to a native speaker.
Moving From Isolated Words to Connected Ideas
The fix is to switch your focus from single words to whole sentences. This simple but powerful technique, known as sentence mining, is built on one profound principle: context is everything. Instead of learning words on their own, you learn them wrapped in the structure of real, natural sentences.
By learning vocabulary through sentences, you absorb grammar, word order, and usage patterns subconsciously. It’s a far more organic process that mimics how you learned your first language—not by studying grammar tables, but by hearing and understanding ideas in context.
This approach is what helps you finally break through that common intermediate plateau. You start to develop a genuine feel for what "sounds right" in Mandarin. The connections your brain builds are deeper and far more practical, allowing you to not just recognise words, but to actually use them correctly.
How Sentence Mining Works in Practice
The process itself is simple. You find sentences that contain just one or two words you don't know, and you pop that entire sentence into a Spaced Repetition System (SRS) for review. When you review it later, you're not just recalling a definition; you're strengthening your understanding of grammar and seeing the word in its natural habitat.
- You build context instantly: Learning ‘昨天’ (zuótiān - yesterday) within the sentence ‘我昨天没去上班’ (wǒ zuótiān méi qù shàngbān - I didn't go to work yesterday) teaches you its meaning and its typical placement all at once.
- Grammar becomes intuitive: You don't need to memorise a rule that time words usually come after the subject. After seeing this pattern in dozens of sentences, it just becomes second nature.
- Recall becomes active, not passive: When you want to express an idea, your brain pulls up a complete pattern, not just a single word. This makes your speech much faster and more fluid.
For a deeper dive into applying this technique, check out our complete guide to sentence mining for Mandarin learners. It breaks down the step-by-step process of finding and using sentences to really speed things up.
This kind of intensive, context-rich exposure is vital for adult learners who can’t just drop everything for full immersion. The power of high-quality, repeated input is clear in UK educational settings. For example, at Kensington Wade, the UK's first bilingual English–Chinese prep school, pupils spend 50% of their day learning core subjects in Chinese from the age of three. The results are striking: one 10-year-old pupil recently achieved the highest possible grade in GCSE Mandarin, an exam most students take at 16. For adults, this just goes to show why recreating at least 5–10 hours a week of meaningful, sentence-based contact is so valuable. You can learn more about how immersion impacts learning speed by exploring the case studies from UK schools.
Ultimately, sentence mining isn't just another study hack; it's a fundamental shift in how you look at the language. It turns learning from a dry memorisation task into a dynamic process of spotting and internalising patterns. By making sentences the core unit of your study, you build a practical, usable knowledge base that leads directly to better speaking and listening, which shortens your timeline considerably.
How to Measure Your Mandarin Progress
Clocking the hours you spend with your head in the books is one thing, but it doesn't tell you the whole story. How do you actually know if all that effort is paying off? To get a real sense of how long it will take to learn Mandarin, you need a change in perspective: focus less on time spent and more on the tangible skills you're gaining.
Measuring what you can do with the language is the best way to see genuine progress. This approach gives you a much clearer picture of your abilities and, just as importantly, keeps you motivated by showing you how far you've come. It turns the vague goal of "getting better" into a series of real, achievable milestones.
Moving Beyond Time-Based Metrics
Your main focus should be on what you can actively produce and understand. This means looking at practical skills, not just the hours you've logged in your study journal. Here are a few powerful metrics to start tracking.
- Known Words in Your SRS: Keep an eye on the number of words your Spaced Repetition System (SRS) marks as "mature" or "known." This gives you a hard number for your active vocabulary, which is far more reliable than a rough guess.
- Comprehension Percentage: Test yourself regularly. Find a short Chinese podcast episode or a news article that’s just a little bit above your current level. How much can you understand without reaching for a dictionary? Aiming to bump this percentage up over time is an excellent, concrete goal.
- Sentence Formation Speed: Try to explain something simple, like what you did yesterday, in Mandarin. Notice how often you have to pause, searching for a word or trying to remember a grammar point. As you improve, you'll find these hesitations get shorter and less frequent—a sure sign of growing fluency.
Focusing on output-based goals transforms your learning. Instead of asking "Did I study for an hour?" you start asking, "Did I learn five new sentences I can actually use?" This mindset shift is crucial for making steady, rewarding progress.
Benchmarking with Real-World Standards
Official exams provide a structured way to measure your skills against a recognised standard. Even if you have no plans to sit an exam, understanding the requirements for each level gives you a valuable benchmark for your own progress. You can check out our detailed guide on whether you should take the Chinese HSK tests to see how these levels map to specific communication skills.
This also ties into data from educational systems. In the UK, for example, exam statistics show a clear link between time spent and qualifications earned. According to China Daily, GCSE Mandarin entries rose from just over 3,000 in 2012–13 to more than 7,800 in 2023–24. Students typically sit this exam after five years of study, which represents hundreds of hours of combined classroom and independent work.
As a rough estimate of our own, an adult learner might need somewhere in the region of 400–600 hours of focused study to reach a similar level. You can read more about the growth of Mandarin learning in the UK.
By tracking these kinds of real-world indicators, you create a feedback loop that makes your study plan more effective and shows you clearly how far you've come. If you don't have a plan yet, start with our week-by-week Chinese study plan.
FAQs on Learning Mandarin Chinese
How Many Years Does It Take to Learn Chinese?
At about an hour a day, most learners reach simple everyday conversation in one to two years and comfortable working Mandarin in three to five. Fluency at that pace takes six to ten years. Full-time study shrinks this a lot: the FSI's 88-week course, about a year and eight months, takes its students to professional working proficiency.
How Long Does It Take to Master Chinese?
If "master" means professional fluency, plan on roughly 2,200–3,500 hours of study, which is one to two years full time (the FSI course takes 88 weeks), two to three years at three hours a day, or the better part of a decade part time. Near-native mastery, where you read literature with ease and pass for a native speaker on the phone, takes longer still, and many fluent learners keep working on it for the rest of their lives. For most goals, HSK 4 or 5 is a more useful target than "mastery".
How Hard Is It to Learn Mandarin as an English Speaker?
It's one of the harder languages for English speakers. The FSI puts Mandarin in its hardest category, at 88 weeks of training, compared with 24–30 weeks for French, Spanish or Italian. The hard parts are the characters, the tones and the lack of shared vocabulary with English. Some things are easier than people expect: Chinese verbs don't change for person or tense, nouns have no gender and plurals are usually unmarked (们, men, is used only for people), and basic word order (subject, verb, object) is close to English.
Is It Possible to Learn Chinese as an Adult?
Yes. The FSI's students are adults, and so are most people who learn Chinese well. Children tend to end up with a better accent, but adults can study deliberately and make use of what they already know about how languages work. What adults usually lack is time, which is why a realistic plan of daily hours matters more than age.
Can I Learn Chinese on My Own?
You can get a long way on your own with apps, graded readers, podcasts and TV. The one thing self-study struggles to provide is conversation, so add a tutor or a language exchange partner once you know a few hundred words. Mandarin Mosaic covers the self-study side: HSK 1–6 and HSK 3.0 levels 1–7 lesson packs, sentences that add one new word at a time, and spaced repetition to keep what you've learned.
Are Tones Really the Hardest Part of Learning Chinese?
Tones have a scary reputation, but most people who stick with Mandarin find they aren't the big, bad monster they expected. At first, telling the four main tones apart takes some serious, focused listening, but your brain is surprisingly good at adapting. Before long, tones stop feeling like an extra layer of difficulty and just become part of the word itself.
The real, long-term challenge for most learners isn't tones—it's the sheer volume of characters and vocabulary you need to become literate. Memorising thousands of characters is a marathon, not a sprint, and it demands patience and a smart system like SRS to keep everything straight.
Can You Become Fluent Using Only Language Apps?
Language apps are brilliant for what they do. They can help you build a solid foundation, especially with vocabulary and basic sentence structures. But if you rely on them and nothing else, you're almost guaranteed to hit a wall. Apps are a crucial part of a modern study plan, but they can’t give you two things that are absolutely essential for real fluency: real-world listening and active speaking.
To keep moving forward, you have to get out of the app and into the wild. That means supplementing your digital drills with things that push your actual communication skills.
- Listen to Chinese podcasts and get hooked on a C-drama.
- Find a tutor or a language exchange partner and just start talking.
Think of it this way: apps are like your personal trainer and textbook. They give you the core exercises and the knowledge, but you still have to get on the court and play the game to become a truly skilled player.
Ready to stop memorising isolated words and start learning Mandarin in context? Mandarin Mosaic uses sentence mining and spaced repetition to build your grammar intuition and accelerate your vocabulary growth. Try Mandarin Mosaic free.