English number words

21 in English Words

21 in English is:

twenty-one

American English · Short scale

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Number Breakdown

21 = 2 tens + 1 one

English Style Variants

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

Spelling notes for 21

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

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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

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Write 21 in words:

English number words: questions and answers

How do you write 21 in English words?

21 in English words is twenty-one.

Which English style is shown?

This result uses American English. The style comparison on this page shows the available American and British forms.

Can I use this as a currency amount?

This page spells a cardinal number. Use the linked money converters when you need dollars, euros or cents.

Method and language reference

This tool builds cardinal words from three-digit groups and short-scale names. American and British options describe the wording used by this converter; document style guides may use other conventions.

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