KnowHow · Korean

How long it takes to learn Korean — NoaLingua

About 2,200 hours, and a weekend that is genuinely a weekend

The US Foreign Service Institute puts Korean at about 2,200 class hours — roughly 88 weeks full time, its hardest band. At an hour a day that is around six years. Reading Hangul, though, takes a weekend, and it is the only part of Korean that is genuinely quick.

Written by Nemanja Pejić Founder and developer of NoaLingua

Published 26 August 2026

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Why the number is really about what survives between sessions

A 2,200-hour estimate assumes the hours accumulate, and in Korean they leak badly. There is almost no shared vocabulary with English, so a half-forgotten word cannot be reconstructed from a familiar root — it is either there or it is gone.

That is the leak NoaLingua closes. Words you save come back on a spaced schedule just before you would have lost them, with the sentence and the scene still attached, so the hours compound rather than reset.

Returned before it decays: A spaced schedule brings a saved word back at the point you were about to lose it, which is the only economical time to review anything.
The scene comes with it: A card carries the sentence, its translation, the title and the timestamp — so a word is re-met where it lived rather than as an isolated pair.
Hours you were spending anyway: The material is the drama you were going to watch. Across a 2,200-hour language, that is the difference between a plan and a wish.

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The figure, and where it comes from

The Foreign Service Institute has taught languages to American diplomats since 1947 and measures how long each takes. Korean sits in Category IV — its hardest tier, shared with Japanese, Chinese and Arabic — at about 2,200 class hours, roughly 88 weeks of full-time study, to General Professional Proficiency.

People are often surprised by this, because Hangul is famously easy and that fact does a great deal of work in Korean’s reputation. The category is not measuring the alphabet. It is measuring grammatical distance from English, the honorific system, the sound changes and the near-total absence of shared vocabulary — none of which the alphabet helps with.

What the figure assumes

These are intensive classroom hours — around 25 a week — with three to four hours of individual study a day on top. The real investment behind the published figure is larger than the figure, under conditions almost nobody reading this has.

So compare accumulated hours rather than elapsed months. A part-time learner three years in with 900 hours is on track and will feel like a failure if they measure against "88 weeks" instead.

At three hours a day: Around two years to the FSI band. This is the fast end of realistic and requires the kind of consistency most people cannot sustain against a job.
At one hour a day: About six years on the arithmetic. The milestones that matter arrive well inside the first quarter of that.
Reading Hangul: A weekend. It is the only part of Korean where a dramatic-sounding claim about speed is simply true.

The milestones that arrive much earlier

Professional working proficiency means handling a meeting and a newspaper. Very few people need it, and what they usually want is much closer.

Reading Hangul aloud: a weekend. Recognising common phrases in a drama without looking: a few months. Following a contemporary series with a translated line on screen and understanding most of it: achievable inside the first year part-time. That last one is the milestone that changes everything, because from there the material itself starts doing the teaching.

What the evidence says

Each of these has a source and a date. Where we could not find one, the claim is not here.

Korean is FSI Category IV: about 2,200 class hours, around 88 weeks.: The hardest published band, and about three and a half times the Category I figure for Spanish and French — despite the alphabet being the easiest of any hard language. US Foreign Service Institute language difficulty categories, checked 2026-08-26
The FSI figure is intensive classroom time — around 25 hours a week — plus three to four hours of daily individual study.: Quoting 2,200 hours without this is the standard mistake. Compare total hours, never elapsed months. FSI programme structure, as described alongside the category tables, checked 2026-08-26
New material decays sharply within the first day unless it is retrieved again.: Korean is unusually exposed to this, because a forgotten word has no familiar root to rebuild it from. Ebbinghaus’s forgetting curve, summarised with sources on our blog

From people who have done it

Time to proficiency is driven far more by how different the language is from your own than by aptitude or method.

The US Foreign Service Institute Has taught languages to American diplomats since 1947 FSI language difficulty categories

Common questions about NoaLingua

Can I learn Korean in a year?

You can reach a useful level in a year at several hours a day — reading fluently, following simple conversation, watching with support. You will not reach the FSI band, and no product changes that arithmetic.

If Hangul is so easy, why is Korean rated so hard?

Because the rating measures grammar, vocabulary distance and the honorific system, none of which the alphabet touches. Hangul is a genuine gift and it is the smallest part of the task.

Is Korean harder than Japanese?

They share the FSI’s hardest band, so overall they cost about the same. Korean’s writing is far easier; its honorifics and sound changes are harder in exchange.

Does watching K-dramas count as study hours?

Only where you are actually processing Korean. With the Korean line on screen and words being looked up and saved, yes. Watching with English subtitles alone mostly trains you to read English quickly.

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