Spanish or French: which should you learn?
If you are choosing between Spanish and French, the usual advice is "Spanish is easier". The numbers say something more interesting: the two take the same time to learn well, but they are hard in different places and at different moments. This post puts the measurable things side by side — how long, how many speakers, how fast the words pay off, and where each one bites — and then says who should pick which.
The numbers side by side
| Spanish | French | |
|---|---|---|
| FSI time to professional level | 30 weeks (690 class hours) | 30 weeks (690 class hours) |
| Native speakers | about 519 million | about 74 million |
| Second-language speakers | about 117 million | about 238 million |
| Word forms that make up half of speech | 95 | 64 |
| Share of speech covered by the first 1,000 forms | 74.9% | 79.4% |
| Word forms needed for 80% of speech | 1,845 | 1,076 |
| Vowel sounds | 5 | up to 13 oral and 4 nasal |
| Noun genders | 2 | 2 |
The speaker figures are the ones in each language's Wikipedia article on 2026-09-28: the Instituto Cervantes' 2025 count for Spanish, Ethnologue's for French. They measure different things in different ways, so read them as orders of magnitude. The word figures come from film and television dialogue — hundreds of millions of words of subtitles per language — which is the closest large corpus there is to how people actually talk.
The time is the same
The Foreign Service Institute, the US State Department's language school, puts both languages in its easiest category at exactly the same 30 weeks of full-time study. That surprises people who have heard that Spanish is the easy one, and it is worth taking seriously: a school that has taught both to adult English speakers for decades sees no difference in the time to real fluency. The difference is in the path.
Spanish: easy start, hard middle
Spanish is easy to begin. Its 5 vowels never change, its spelling tells you how to say a word and its pronunciation tells you how to spell it, so reading and listening support each other from the first lesson.
The work arrives with the verbs. Spanish verbs change their ending for every person and tense, the commonest ones are irregular, and much of everyday speech is made of them: the ten commonest Spanish verbs alone account for 58.1% of all the verb forms we could count in the subtitle corpus. The most common Spanish verbs lists them, and is Spanish hard to learn explains the two famous difficulties, ser against estar and the subjunctive.
French: fast words, hard sounds
French has the steepest vocabulary curve of any language we have measured: 64 word forms are half of everything said, against 95 for Spanish, and 80% of speech takes 1,076 forms against Spanish's 1,845. Spoken French leans very hard on a small core of pronouns, short verbs and function words.
- Spanish
- French
| Language | First 100 | First 500 | First 1,000 | First 2,000 | First 5,000 | First 10,000 |
|---|---|---|---|---|---|---|
| Spanish | 50.6% | 68.6% | 75.0% | 80.8% | 87.8% | 92.5% |
| French | 56.6% | 73.9% | 79.5% | 84.7% | 90.7% | 94.5% |
The catch is that knowing those words on paper does not mean hearing them. French spelling hides much of the sound (ils parlent ends in three silent letters), liaison and elision run words together (les amis, vous avez), and the vowel system is far larger than Spanish's, with nasal vowels English does not have. So a French learner often reads well long before they can follow a conversation. How long it takes to learn French turns the curve into days and explains why the FSI still gives French the same time as Spanish.
How much transfers between them
Less than people expect. Of the 1,000 commonest word forms in Spanish dialogue, 42 are real words spelt identically among the 1,000 commonest in French, against 223 for Brazilian Portuguese. The two languages share Latin roots, so a great deal is recognisable with a small change (libertad, liberté), but the everyday core has drifted apart. Learning one first helps with the second's grammar far more than with its words.
Which should you learn?
- Choose Spanish if you want the widest reach — it has about seven times the native speakers — if you are in the Americas, or if you want to be holding simple conversations as soon as possible. The early months are the gentlest of any major language.
- Choose French if you care most about reading, or about France, Canada, Switzerland, Belgium or the many African countries where French is an official language. Its words pay off fastest, and the listening comes with practice.
- Choose the one you will keep doing. The FSI's equal weeks mean that neither is a shortcut. The language you still practise in a year is the easier one.
Both word lists are free and in frequency order: the 1,000 most common Spanish words and the 1,000 most common French words. The Spanish course and the French course each teach from their list, one lesson a day. If French against German is the real choice, the same comparison is in French or German.
Sources
- Foreign Service Institute, National Foreign Affairs Training Center: language learning timelines, checked 2026-09-25.
- Wikipedia: Spanish language — speaker figures from the Instituto Cervantes, El español en el mundo 2025; French language — speaker figures from Ethnologue; both checked 2026-09-28.
- Wikipedia: Spanish phonology — five vowel phonemes; French phonology — "up to 13 oral vowels and up to 4 nasal vowels".
- Lison, P. & Tiedemann, J. (2016). OpenSubtitles2016: Extracting Large Parallel Corpora from Movie and TV Subtitles. Proceedings of LREC 2016. aclanthology.org
- Dave, H. FrequencyWords: frequency lists from OpenSubtitles 2018, content licensed CC BY-SA 4.0. github.com. Every figure is computed by
scripts/frequency_curves.pyand printed from its output rather than typed.