The Best Languages to Learn in 2027 — Ranked, and How Long Each One Really Takes

What are the best languages to learn in 2027?

English if you don't already speak it well, and Spanish if you do. English is the world's largest language at 1.5 billion speakers, and Spanish gives an English speaker the widest reach for the fewest study hours — those two answer the question for most people. After them the ranking depends on where you want to end up: Mandarin Chinese has the most native speakers of any language, Hindi has the third-largest speaker base overall, Arabic tracks a Gulf economy the IMF expects to rebound hard in 2027, French and Portuguese are cheap in hours for an English speaker, and German, Japanese and Korean each win for a specific industry or culture.

Here is the full ranking. Every position is justified by a number you can go and check, and the two columns that matter most sit side by side: how far the language reaches, and how many hours it costs to get there.

How this ranking was built

Four criteria, in this order: reach (how many people you can talk to — the Ethnologue 200, 29th edition data), institutional demand (what school systems and employers actually ask for — Eurostat's EU-wide figures, extracted April 2026, and a 2019 ACTFL/Ipsos survey of 1,200 US employers), momentum (what learners are choosing now — the 2025 Duolingo Language Report), and cost in hours (the US Foreign Service Institute's current published training lengths). A language ranks high when it scores well on reach and demand without costing an unreasonable number of hours.

The order is not a popularity contest and it is not an opinion poll. Where two languages were close, the tie-breaker was reach-per-hour: Spanish outranks Mandarin here not because Mandarin matters less, but because Spanish delivers a comparable amount of usable reach in roughly a quarter of the study time.

Just as important is what has been left out. Rankings in this niche are full of confident-sounding numbers with no traceable origin, and a guide is only worth citing if you can follow every figure back to whoever measured it.

Which language could you actually finish in 2027?

An hour a day for all of 2027 is about 365 hours — more than half of what the Foreign Service Institute budgets for Spanish, French, Italian or Portuguese, and about a sixth of what it budgets for Arabic, Chinese, Japanese or Korean. That single comparison should decide your pick more than any ranking. FSI currently puts Category I languages at 24–30 weeks of full-time study (552–690 class hours) and Category IV at 88 weeks (2,200 class hours), aimed at an integrated score of 3 on the Interagency Language Roundtable scale — a professional standard, well past holiday conversation.

Here is what a realistic weekly habit adds up to over a calendar year, set against those budgets:

Read the table honestly and the practical conclusion is uncomfortable but useful: if you can give a language an hour a day and you want to be genuinely functional by the end of 2027, pick a Category I language. If you pick Mandarin, Arabic, Japanese or Korean, plan in years rather than months and set a milestone for 2027 — a first level, a first real conversation — rather than a finish line.

Is English still the most valuable language to learn in 2027?

Yes, if you don't already speak it well — no other single language comes close on institutional demand. English is the largest language in the world at 1.5 billion speakers once second-language speakers are counted (Ethnologue 200, 29th edition data), and its position in education is close to universal: 97.6% of pupils in EU lower secondary and 89.4% in upper secondary were learning English in 2024, according to Eurostat figures extracted in April 2026. The next most-learned language in EU lower secondary, French, sits at 30.3%.

Learner behaviour points the same way. English was the most-studied language on Duolingo in 2025 and the number one language in 154 countries — 79% of all countries, and a 14% increase on 2024, per the 2025 Duolingo Language Report. Very little else in this space is still growing from a position that dominant. And as the UK's 2027 settlement change shows, English is also the language most likely to be attached to a legal threshold you personally have to clear.

The practical reading for 2027: if English is your target, the leverage is not in starting — it's in the middle. Moving from an intermediate level to a genuinely usable one is what unlocks university admission, visas and English-language work, and that is where most learners stall. Our own measurements make the size of that plateau visible: across 1,323 completed free English tests on Nivelo between 19 May and 8 July 2026, only 11.7% measured B2 or above and fewer than 2% measured C1 or higher. That sample skews heavily to one country and to people who suspect they need checking, so it is not a global average — but B2 is exactly the level universities and employers ask for, which makes it the gap worth aiming at.

Is Spanish still the best pick for English speakers in 2027?

Yes — it remains the best reach-to-effort trade available to an English speaker. Instituto Cervantes' 2025 demographic report put Spanish past 500 million native speakers for the first time in its history (519,115,258), with 635,743,644 potential users worldwide once limited-competence speakers and learners are included. And the Foreign Service Institute places Spanish in Category I — the cheapest bracket it publishes, at 552–690 class hours.

Nothing else in the top ten pairs that much reach with that little effort. Mandarin has more native speakers but costs roughly four times the hours; Hindi has more total speakers but sits two difficulty categories higher, at 1,012 hours. Spanish is also where US employer demand actually concentrates: in a 2019 ACTFL survey of 1,200 US employers conducted by Ipsos, 85% of those relying on languages other than English named Spanish — far ahead of Chinese at 34% and French at 22%.

Spanish also has an advantage the ranking columns don't capture: you can practise it without leaving home. The US Census Bureau's American Community Survey found 67.8 million US residents spoke a language other than English at home in 2019, and Spanish accounted for 62% of them — about 42 million people. For a learner in the United States that is daily, free, real-world input, which is worth more than any study plan.

It is also a language people are actively choosing rather than drifting away from: Spanish was the second most-studied language on Duolingo in 2025, and Instituto Cervantes counted 24,560,143 people learning Spanish as a foreign language that year, up 1.5% on 2024.

Which languages are gaining the most learners going into 2027?

Chinese, Korean and Portuguese. The 2025 Duolingo Language Report names Chinese the fastest-growing language in twelve countries — including Argentina, Brazil, France, Germany, Indonesia, Mexico, Poland, South Korea, Spain and Turkey — and second in the United States. Korean is the second fastest-growing language in seven countries, and Portuguese is the fastest-growing language in both China and India.

That momentum is genuinely informative, because it shows where cultural and economic pull is building rather than where it already sits. But it is worth reading with two caveats.

• It is one platform's data. Duolingo's learner base is large but not a representative sample of the world's language learners, and app signups measure interest, not completion.
• Growth is not value. A language can be the fastest-growing pick in a country and still be a poor fit for your specific goal — Korean and Japanese are Category IV languages, so enthusiasm has to survive a 2,200-hour budget.
• Institutional demand moves far more slowly. Eurostat's 2024 figures show EU schools still concentrate on English, French, Spanish and German; a surge in app signups does not change what employers and universities ask for in a single year.

The sensible way to use momentum data is as a tie-breaker, not a driver. If two languages fit your goal equally well, the one gaining learners will have more content, more study partners and more media to practise with by the time you need them.

Will AI translation make learning a language pointless in 2027?

No — but it does change which reasons still hold up. Machine translation has already absorbed most of the transactional case for learning a language: reading a menu, decoding a form, getting the gist of an article. If that was your entire motivation, a phone genuinely does it faster. What translation does not do is make you a participant. It sits between you and the other person, it adds latency to every exchange, and it removes the thing that actually builds a relationship — the other person hearing you try in their language.

The reasons that survive into 2027 are the ones that were always the strongest anyway:

• Live conversation. Real-time speech is where translation is weakest and social cost is highest. Interviews, negotiations, arguments, jokes and small talk all break under a two-second relay.
• Work that requires the language, not a translation of it. Immigration and university rules ask for a certified level in the language itself; no amount of translation software satisfies a visa requirement.
• Living somewhere. Day-to-day life in a place is a thousand micro-interactions, and mediating each one through a device is exhausting and isolating.
• Access to the unmediated version. Humour, register, tone and subtext are precisely what translation flattens.

The honest framing for 2027 is that AI raises the bar rather than removing it. Learning a language to a shallow tourist level has less payoff than it did ten years ago; learning one to the point where you can hold your own in it has roughly the same payoff it always had.

What changed between 2026 and 2027?

One thing that genuinely matters, and it is a rule change rather than a ranking change: on 26 March 2027 the UK raises the English requirement for settlement from CEFR B1 to CEFR B2. The Home Secretary set this out in a written ministerial statement on 5 March 2026 (HCWS1379), implementing the May 2025 immigration White Paper. It applies to a number of routes where the requirement is currently B1, and it is assessed on speaking and listening. For anyone on a path to indefinite leave to remain in the UK, that is a dated, personally consequential reason to move up a CEFR level during 2027 — and it is the single most concrete difference between planning for 2026 and planning for 2027.

The rankings themselves barely moved, and that is the second useful thing this guide can tell you. English and Spanish held their positions on every metric used here, and the difficulty categories are a structural fact about each language rather than a trend. Anyone publishing a dramatically reshuffled list each January is manufacturing news, not reporting it.

What did shift is worth noting. Spanish passed 500 million native speakers for the first time in its history (Instituto Cervantes, 2025). English extended its lead as the most-studied language, reaching first place in 154 countries — 79% of all countries — up 14% year on year (2025 Duolingo Language Report). Chinese, Korean and Portuguese kept building learner momentum in markets where they were previously marginal. And the economic backdrop for Arabic changes sharply: the IMF's July 2026 World Economic Outlook Update projects Middle East and Central Asia growth rebounding from 0.7% in 2026 to 6.5% in 2027, the largest single-region swing in its table.

Beyond the rule change, the real difference between 2026 and 2027 is the calendar — a language you start in January has a full year to accumulate hours, which is why the hours table above matters more than the ranking table does. If you would rather start from your goal than from a ranked list, our companion guide to the best languages to learn in 2026 works the other way round: it starts with what you want and matches a language to it.

So which language should you learn in 2027?

Learn English if you don't already speak it confidently; learn Spanish if you do. Those two answers cover most people, and both are defensible on published numbers rather than opinion. If neither fits — because you already have both, or because your goal is tied to a specific country — take the ranked table, cross out every language that doesn't serve your actual goal, and pick the cheapest one left in hours.

1. Pick one language. Two at once splits a limited number of hours across two budgets that were already tight.
2. Set the hours before you set the goal. Decide what you can genuinely give it each week, run it through the table above, and let that tell you whether 2027 is a finish line or a first milestone.
3. Choose a measurable target, not a feeling. "Fluent" has no definition; the CEFR levels (A1 to C2) do, which is why schools, universities and immigration systems use them.
4. Get real input early. Whatever you pick, the people who get somewhere are the ones who start listening to and speaking the actual language long before they feel ready.

Nivelo teaches two of the languages on this list — English and Spanish — and its whole design is built around measuring where you actually are rather than how many days you have shown up. If you are still deciding, the useful next step is simply to start: pick one, give it an hour a day, and check in against the CEFR scale a few months in.