100 in Japanese
百
Updated June 2026
100 in Japanese is 百, written ひゃく in hiragana and read hyaku. 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)
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.
Frequently asked questions
How do you write 100 in Japanese?
100 is written 百 in kanji and ひゃく in hiragana. In romaji (modified Hepburn) it is hyaku.
What is 100 in hiragana?
100 in hiragana is ひゃく. Hiragana spells out the reading hyaku phonetically; the kanji form is 百.
What is the formal (daiji) form of 100?
The daiji form of 100 is 佰. Daiji are elaborate kanji used on cheques, contracts, and official documents to stop anyone altering the simpler 百.
Related numbers
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