If you like to spell 21, then you have come to the right place.

Here you can find the number 21 changed to English in various cases for use in text as words, as amount in dollars as well as for check writing, etc.

English:

American
British

To:

Words
Check
Currency

Letter case:

Sentence case
lowercase
UPPERCASE
Title Case
Spelling: Twenty-one

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Spell 21

Our converter already shows you how to write out 21.

In the radio button menu you may change the output format from words to dollars or check.

To alter the case, make your selection in the drop-down menu.

Please note that we employ the short scale naming system, aka American English, except for the result when British English has been chosen above.

In the table below we show you the spelling of numbers close to 21:

NumberName
16sixteen
17seventeen
18eighteen
19nineteen
20twenty
21twenty-one
22twenty-two
23twenty-three
24twenty-four
25twenty-five
26twenty-six

Next, we elaborate on the spelling.

How to Spell 21

Cardinal

  • lowercase: twenty-one
  • Sentence case: Twenty-one
  • UPPERCASE: TWENTY-ONE
  • Title Case: Twenty-One

Ordinal

  • lowercase: twenty-first
  • Sentence case: Twenty-first
  • UPPERCASE: TWENTY-FIRST
  • Title Case: Twenty-First

In daily use, one would usually write the short form of the ordinal which is 21st.

Numeric

  • Binary (Base 2): 101012
  • Ternary (Base 3): 2103
  • Quaternary (Base 4): 1114
  • Quinary (Base 5): 415
  • Senary (Base 6): 336
  • Octal (Base 8): 258
  • Decimal (Base 10): 2110
  • Duodecimal (Base 12): 1912
  • Hexadecimal (Base 16): 1516
  • Vigesimal (Base 20): 1120
  • Hexatridecimal (Base 36): L36

In the following section, we show you how to write the money.

Spell 21 Dollars

Here’s how to spell 21 dollars:

  • In words: twenty-one dollars
  • In numbers: 21 dollars
  • On checks: Twenty-one and no/100 (pre-printed “dollars”)
  • In figures: 21 dollars
  • As an amount: $21.00
  • In currency: twenty-one USD
  • In short form: $0.21C

Ahead is the summary of this article.

Bottom Line

How do you spell 21? In the general sense,

If you are happy with our information, then you may also be interested in our post how do you spell 33?

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