100 in Japanese
百
Updated May 2026
The hundred boundary
NUMERAL
100
KANJI
百
HIRAGANA
ひゃく
ROMAJI
hyaku
Counter-attached forms
How 100 attaches to common counters. Each links to the per-counter deep-dive.
Daiji formal form (for cheques and contracts)
佰Used on bank cheques and contracts to prevent forgery of the simpler kanji 百.
Real sentence examples
百円ショップでよく買い物します (hyaku-en shoppu de yoku kaimono shimasu): I often shop at the 100-yen store.
百人の参加者がいました (hyaku-nin no sankasha ga imashita): there were 100 participants.
Pronunciation and morphology notes
One hundred is just hyaku, not ichi-hyaku. Japanese drops the leading ichi- before hyaku (100) and sen (1000) when no other digit precedes. The pattern is consistent: 100 = hyaku, 1000 = sen, but 10,000 keeps the ichi: ichi-man. The daiji form 佰 (also can be written 陌) is used on cheques and contracts to prevent forgery of the simple 百.
Related numbers
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