Number Digit tool

21 in Words

Learn how to write 21 in English words, see the correct spelling, and move to the previous or next number.

21 in Words

21 in words is twenty-one.

Normalized number
21
Language
English
Style
American English

English Style Variants

Ways to write 21 in English words
Style Words
American English twenty-one
British English twenty-one

Why is 21 written as twenty-one?

Why the 21 part uses a hyphen

Compound numbers from 21 through 99 join the tens word and the ones word with a hyphen. In 21, the 21 part combines twenty and one, producing twenty-one.

Nearby Numbers in Words

Download PDF
Numbers 21 to 30 in Words
Number Words
21 twenty-one
22 twenty-two
23 twenty-three
24 twenty-four
25 twenty-five
26 twenty-six
27 twenty-seven
28 twenty-eight
29 twenty-nine
30 thirty