How long does it take to learn Portuguese?
The US Foreign Service Institute places Portuguese 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 Portuguese words in InputDojo
- 211
- Portuguese grammar topics in InputDojo
- 6
Category I, the fastest group for English speakers.
Choose the variety before you choose the method
Portuguese is the Category I language where the first decision matters most. Brazilian and European Portuguese share their written vocabulary almost entirely, so reading transfers freely, but European Portuguese reduces unstressed vowels so heavily that listening practice does not transfer well in either direction. A learner who spends six months on Brazilian audio and then moves to Lisbon has not wasted the vocabulary, but has largely restarted the listening. Decide which one you need, then pick material to match.
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 Portuguese 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
Is Portuguese easier if I know Spanish?
Considerably, for reading and vocabulary. Pronunciation and listening still take real work, particularly for European Portuguese.
Brazilian or European Portuguese?
Whichever you will actually use. The written language is largely shared; the spoken forms differ enough that listening practice is not interchangeable.
How long to become conversational in Portuguese?
Several months of steady study, faster with prior Spanish or another Romance language.

