The Easiest Languages to Learn if You Speak English — Ranked by Real Hours, Not Vibes

Everyone tells you Spanish is easy. Nobody tells you it still takes 600 hours.

You've seen the app ads. 'Learn Spanish in 10 minutes a day!' Great. At that rate, you'll be conversational in roughly 17 years. The truth about language difficulty isn't depressing — it's just honest. And honest is more useful than encouraging-sounding nonsense.

The US Foreign Service Institute (FSI) has been training diplomats in foreign languages since 1947. They track, in actual classroom hours, how long it takes a native English speaker to reach professional working proficiency. Their published category rankings are the closest thing the language-learning world has to a rigorous, large-sample benchmark. They're not perfect — your results depend on your method, your motivation, and how much the language overlaps with what you already know — but they're the best starting point we have.

This post ranks the most commonly studied languages by FSI category, explains *why* some are faster, and then makes the argument that 'easy' is probably the wrong filter anyway.

What does the FSI difficulty scale actually measure?

The FSI measures hours of classroom instruction needed to reach roughly S-3/R-3 on the Interagency Language Roundtable scale — equivalent to professional working proficiency, broadly comparable to B2–C1 on the CEFR scale. It is not 'tourist phrases' and it is not 'native-like fluency.' It's the level where you can do your job in the language.

Four categories cover almost every language an English speaker might study. The hour ranges below come directly from the FSI's published language difficulty rankings for native English speakers.

One important caveat: FSI figures assume intensive classroom instruction — roughly 25 hours per week with expert teachers and full immersion in the curriculum. Self-study with apps and YouTube typically takes significantly longer to reach the same endpoint. Keep that in mind when you see the numbers below.

The full ranking table: language, FSI category, hours, and why

Here are the major languages English speakers commonly study, organised by FSI category. The 'what makes it easy or hard' column is where the real insight lives.

Why are Category I languages so much faster?

Three factors stack together to make Romance and Germanic languages dramatically faster for English speakers than the headline hours suggest possible.

Shared vocabulary. English is a hybrid language — roughly 60% of its vocabulary derives from French and Latin, with a Germanic core. That means the moment you start Spanish, Italian, or French, you already recognise hundreds of words. 'Nation,' 'natural,' 'animal' — the same, or nearly, in English, Spanish, and French. 'Animal,' 'capital,' 'probable' — identical or near-identical. Linguists call these cognates. Category I languages are loaded with them. Category IV languages have almost none.

The same alphabet. Learning to read Cyrillic takes roughly 10 dedicated hours. Learning to read Arabic script, with its cursive joins and vowels often omitted, takes months. Learning to read kanji to functional literacy takes years. Every hour you'd spend learning a new writing system in Category III or IV is an hour you spend on actual vocabulary and grammar in Category I.

Similar grammar logic. English and Spanish both have SVO (Subject-Verb-Object) word order. They both use articles. Verbs conjugate differently, but the concept of conjugation isn't foreign. German adds cases, which is why it sits at Category II. Turkish reverses word order, stacks suffixes where English uses separate words, and has no structural overlap — hence Category III.

Is the 'easiest' language really the best choice?

Here's the honest argument: picking a language because it's 'easy' is a reasonable starting point, but it's rarely the reason people actually finish.

Norwegian is probably the fastest path to a new language for an English speaker. It has simple grammar, familiar vocabulary, and phonetic spelling. It is also spoken by about 5 million people, almost all of whom speak excellent English already, which makes finding real practice opportunities genuinely difficult. You can learn it — but the motivation to keep going past the first few months is harder to sustain than, say, Spanish, which has roughly 500 million native speakers, a global media ecosystem, and an obvious reason to use it tomorrow.

The research on language learning consistently points to motivation and daily exposure as the dominant variables over raw linguistic distance. A 2,200-hour language you use every day for real reasons will progress faster than a 600-hour language you open an app for seven minutes before bed.

That said, if you have no strong preference and genuinely want the fastest first win, Category I is where to start. Spanish and Norwegian are the usual top picks for different reasons: Spanish for its usefulness and media library, Norwegian for its structural simplicity.

For a deeper breakdown of which languages make the most sense by actual life goal — work, travel, heritage, romance — see our guide to the best languages to learn in 2027 at the best languages to learn in 2027.

What does '600 hours' actually look like in real life?

This is where most posts gloss over the uncomfortable maths. FSI's ~600–750 hours for Category I assumes intensive classroom study — not Duolingo streaks, not passive listening while cooking dinner.

If you study one focused hour per day, every single day, you reach 600 hours in 20 months. If you study 30 genuinely focused minutes a day, you're looking at over three years. That is still faster than Category IV at the same rate (which would take over 12 years) — the difference is real — but no language is quick.

What changes the timeline meaningfully: immersion (living in a country), tutored conversation practice several times a week, and input that's slightly above your current level (what linguist Stephen Krashen called comprehensible input i+1). Apps can support these things but rarely replace them.

• 1 hour/day of focused study → Category I in ~20 months
• 2 hours/day → Category I in ~10 months
• 1 hour/day → Category IV (Arabic/Japanese) in ~6 years
• FSI intensive pace (25 h/week) → Category I in ~6 months, Category IV in ~22 months

Which Category I language should you actually pick?

If you're genuinely undecided, here's a practical filter — not a ranking, because the right answer depends on you.

Spanish if you want the largest possible number of people to practise with, the richest content ecosystem (Netflix, podcasts, books), and the most professional value in the Americas.

French if you want access to 29 countries across Africa, Europe, and the Caribbean, or if you work in international institutions (UN, EU, many NGOs default to French).

Portuguese if you're drawn to Brazil specifically — the world's 7th most populous country and a massive economy — or to Portugal and Lusophone Africa.

Italian if your goal is culture, food, music, fashion, or travel in Italy. Less useful professionally than Spanish or French, but extraordinarily rewarding if it's genuinely your motivation.

Norwegian or Swedish if you want the structurally fastest path and have a genuine connection to Scandinavia — or if you plan to learn multiple Germanic languages sequentially (Norwegian → Swedish → Danish is a well-documented 'chain' because mutual intelligibility is high).

Dutch if you're in or near the Netherlands or Belgium professionally, or if you're planning to learn German eventually (Dutch sits usefully between English and German in structure).

Should you avoid Category IV languages entirely?

No — and this is probably the most contrarian thing worth saying in this post. The FSI figures describe how *long* a language takes, not how *valuable* it is. Mandarin, Japanese, Korean, and Arabic are four of the most economically and culturally significant languages on earth. The number of English speakers who reach genuine proficiency in any of them is low, which means your competitive advantage if you do is enormous.

Japanese and Korean have also benefited from massive pop culture ecosystems — anime, K-drama, K-pop — that give motivated learners thousands of hours of engaging input. The learners who finish difficult languages are almost universally the ones who had a strong personal reason to do it, not the ones who picked the 'sensible' option.

If Mandarin is the language that makes you want to sit down and study tomorrow morning, that matters more than the FSI hour count.

The one thing to do before you pick a language

If you're learning a language specifically to access opportunities that require a certified level — a visa, a university application, a job requirement — then the starting question isn't 'which language is easy' but 'what level do I actually need, and by when?'

The CEFR scale (A1 through C2) is the standard framework most formal requirements use globally. Understanding where you currently sit on that scale, even in English, gives you a realistic sense of what the journey from A0 to B2 in a new language actually means in practice. If you want a quick, honest read of your current English level without paying for a test, Nivelo's free 5-minute CEFR placement is a straightforward place to start — it won't gamify you or inflate your result.

Whatever language you pick — and the FSI data is genuinely useful for setting expectations — the most important variable is whether you'll still be studying it six months from now. Pick the one that makes that more likely, not the one that looks shortest on a chart.