Japanese 101

While Arabic (Western) numerals are employed for most uses in Japan, you will occasionally still spot Japanese numerals at eg. markets and the menus of fancy restaurants. The characters used are nearly identical to Chinese numerals, and like Chinese, Japanese uses groups of 4 digits, not 3. "One million" is thus 百万 (hyaku-man), literally "hundred ten-thousands".


There are both Japanese and Chinese readings for most numbers, but presented below are the more commonly used Chinese readings. Note that, due to superstition (shi also means "death"), 4 and 7 typically use the Japanese readings yon and nana instead.

〇, 零 (zero or rei)

一 (ichi)

二 (ni)

三 (san)

四 (yon or shi)

五 (go)

六 (roku)

七 (nana or shichi)

八 (hachi)

九 (kyū)
10 
十 (jū)
11 
十一 (jū-ichi)
12 
十二 (jū-ni)
13 
十三 (jū-san)
14 
十四 (jū-yon)
15 
十五 (jū-go)
16 
十六 (jū-roku)
17 
十七 (jū-nana)
18 
十八 (jū-hachi)
19 
十九 (jū-kyuu)
20 
二十 (ni-jū)
21 
二十一 (ni-jū-ichi)
22 
二十二 (ni-jū-ni)
23 
二十三 (ni-jū-san)
30 
三十 (san-jū)
40 
四十(yon-jū)
50 
五十 (go-jū)
60 
六十 (ro-ku-jū)
70 
七十(nana-jū)
80 
八十 (hachi-jū)
90 
九十 (kyū-jū)
100 
百 (hyaku)
200 
二百 (ni-hyaku)
300 
三百 (san-byaku)
1000 
千 (sen)
2000 
二千 (ni-sen)
10,000 
一万 (ichi-man)
1,000,000 
百万 (hyaku-man)
100,000,000 
一億 (ichi-oku)
1,000,000,000,000 
一兆 (itchō)
0.5 
〇・五 (rei ten go)
0.56 
〇・五六 (rei ten gō-roku)
number _____ (train, bus, etc.) 
_____番 (____ ban)
half 
半分 (hanbun)
less (few) 
少ない (sukunai)
more (many) 
多い (ooi)

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