🇮🇩 Language · FSI Category II

Learn Indonesian

Bahasa Indonesia

Indonesian is spoken by roughly 200 million speakers, mainly in Indonesia, where it is the national language across more than 17,000 islands. Envoy teaches it the way the U.S. Foreign Service trains diplomats — comprehensible-input lessons, spaced repetition, and daily speaking with an AI tutor. Free to start, no card.

900FSI hours to professional
Cat IIdifficulty (of IV)
~2.5 yearsto conversational at 30 min/day
Freefull course

How long does it take to learn Indonesian?

The Foreign Service Institute rates Indonesian Category II — a moderately challenging language for English speakers, about 900 class hours to professional working proficiency (ILR-3, roughly CEFR B2–C1). A conversational B1 is realistic in about 2.5 years at 30 minutes a day, or roughly half that at an hour a day. See the full comparison on how long it really takes to learn a language.

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Indonesian FAQ

Is Indonesian hard to learn for English speakers?

Indonesian is FSI Category II, a moderately challenging language for English speakers — roughly 900 class hours to professional working proficiency (ILR-3, about CEFR B2–C1).

How long does it take to speak Indonesian conversationally?

Reaching a conversational B1 takes about 2.5 years at 30 minutes a day, or roughly half that at an hour a day, based on FSI hour benchmarks. Envoy logs your real hours against that ladder.

Is Envoy's Indonesian course free?

Yes. Create a free account or start as a guest, with no card. The full course, the AI speaking tutor and spaced-repetition review are all on the free tier.

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