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Korean sino numbers — the system borrowed from Chinese — are used for dates, money, phone numbers, and anything above 99. This guide walks 1-100 with Hangul, romanization, and the combination rules that let you form every number in between.
Korean has two full counting systems — sino-Korean (Chinese-origin) and native Korean — and learners constantly mix them up. This overview gives you the one rule that decides which to use, plus a side-by-side table.
Korean native numbers — also called "pure Korean" numbers — are used for counting people, objects, ages, and hours. This guide covers 1-100 with the special forms that change shape before counters, so you sound natural when counting.