How long does it take to learn Spanish?
The US Foreign Service Institute places Spanish in Category I, the easiest group, estimating 600-750 class hours to reach professional working proficiency. That figure describes full-time intensive instruction for native English speakers with a track record of learning languages, so it is a floor for a favourable case rather than a typical outcome — but it is the most soundly based number available, and it is the FSI's, not ours.
Key figures
- FSI estimate
- 600-750 class hours
- Core Spanish words in InputDojo
- 207
- Spanish grammar topics in InputDojo
- 6
Category I, the fastest group for English speakers.
Why Spanish is genuinely faster
Three things compound in Spanish's favour: the spelling is regular so pronunciation is largely solved once, a very large share of the abstract vocabulary is cognate with English, and the alphabet is already yours. That means a Spanish learner starts accumulating real exposure within weeks rather than after a year of decoding practice, and exposure is what actually converts study into ability. The subjunctive and the verb conjugations are real work, but they are work you can do while already reading.
What the FSI number does and does not mean
The estimate comes from diplomatic language training: small classes, full days, motivated adults selected partly for aptitude, and immersion alongside. Almost nobody studying independently matches those conditions, so treat 600-750 class hours as a lower bound under ideal circumstances. The more useful reading is comparative — it tells you reliably that Spanish sits where it sits relative to other languages, which is what most people are really asking.
Hours are the wrong unit anyway
Two people can log identical hours and end up in very different places, because an hour of decoding sentences you barely understand and an hour of reading material pitched just above your level do not produce the same learning. What predicts progress is time spent understanding real language rather than time spent studying about it. The practical implication is to reach material you can mostly follow as early as possible, and then increase the volume.
The pages behind these numbers
Frequently asked questions
Can I learn Spanish in 6 months?
Conversationally, with serious daily effort, yes. The FSI figure of 600 to 750 hours assumes intensive full-time instruction, which is roughly six months of that.
What is the hardest part of Spanish?
The subjunctive mood and the sheer number of verb tenses. Neither blocks you from reading and listening early.
Is Spanish the easiest language for English speakers?
It sits in the FSI's fastest category alongside French, Italian and Portuguese. Which of those is easiest is largely down to the individual.

