21 ▷ How do you Spell 21?

Table of Contents

Toggle

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.

Number:

English:

American
British

To:

Words
Check
Currency

Letter case:

Sentence case
lowercase
UPPERCASE
Title Case

Spelling: Twenty-one

Spell 21

Our converter already shows you how to write out 21.

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.

Frequently Asked Questions

What is another way to write 21?

Twenty-one

How is 21 spelt?

Twenty-one

How is 21st spelt?

Twenty-first

For all other questions you might have just leave a comment.

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

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

– Article written by Mark, last updated on May 5th, 2023

21