1000000000000 in Japanese
一兆
Updated June 2026
1,000,000,000,000 in Japanese is 一兆, written いっちょう in hiragana and read it-chō. One trillion: 一兆, where ichi geminates to it-chō
NUMERAL
1,000,000,000,000
KANJI
一兆
HIRAGANA
いっちょう
ROMAJI
it-chō
Counter-attached forms
How 1000000000000 attaches to common counters. Each links to the per-counter deep-dive.
Cultural context
兆 (chō) is the everyday unit for national-scale money in Japan. The government quotes its general-account budget in chō yen: the FY2026 initial budget set a record at about 122 trillion yen (約122兆円, hyaku-ni-jū-ni-chō-en), the second straight year of record spending, up from 115.5 trillion yen (115.5兆円) in FY2025. Japan’s outstanding central-government debt has topped 1,000 trillion yen (1,000兆円, sen-chō-en) every year since 2013. Source: Japan Ministry of Finance; Nippon.com (record FY2026 draft budget, December 2025).
Real sentence examples
令和八年度の国家予算は約百二十二兆円です (reiwa hachi-nendo no kokka-yosan wa yaku hyaku-ni-jū-ni-chō-en desu): the FY2026 (Reiwa 8) national budget is about 122 trillion yen.
一兆円は一億円の一万倍です (it-chō-en wa ichi-oku-en no ichi-man-bai desu): one trillion yen is ten thousand times one hundred million yen (ichi-oku).
Pronunciation and morphology notes
One trillion in Japanese is it-chō (一兆): the Sino-Japanese ichi shortens and geminates to it before 兆 (chō), giving it-chō, not ichi-chō. It is the same gemination seen in ichi’s other compounds (ip-pon, ik-ko, is-sai). 兆 is the next major unit above 億 (oku, 100 million): one chō equals 10,000 oku, keeping the Japanese 4-digit (man) grouping intact. Multiples are otherwise regular: 3兆 = san-chō, 5兆 = go-chō, 100兆 = hyaku-chō. The next unit up is 京 (kei, 10^16), which is rare outside mathematics and astronomy. English speakers meet 兆 most often in Japanese government finance, where budgets and debt are quoted in chō yen.
Frequently asked questions
How do you write 1,000,000,000,000 in Japanese?
1,000,000,000,000 is written 一兆 in kanji and いっちょう in hiragana. In romaji (modified Hepburn) it is it-chō.
What is 1,000,000,000,000 in hiragana?
1,000,000,000,000 in hiragana is いっちょう. Hiragana spells out the reading it-chō phonetically; the kanji form is 一兆.
Related numbers
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