Numbers 0 rei zero zero zero 1 ichi one one one 2 ni two two two 3 san three three three 4 shi four four four 5 go five five five 6 roku six six six 7 shichi seven seven seven 8 hachi eight eight eight 9 ku nine nine nine 10 juu ten ten ten 11 juuichi eleven eleven eleven 12 juuni twelve twelve twelve 13 juusan thirteen thirteen thirteen 14 juushi fourteen fourteen fourteen 15 juugo fifteen fifteen fifteen 16 juuroku sixteen sixteen sixteen 17 juushichi seventeen seventeen seventeen 18 juuhachi eighteen eighteen eighteen 19 juuku nineteen nineteen nineteen 20 nijuu twenty twenty twenty