How do you write 321 in words?

Three hundred twenty-one. In British English, "three hundred and twenty-one".

What is the ordinal of 321?

Three hundred twenty-first, written 321st.

321 in words

Three hundred twenty-one

Number (1–3,999 for numerals)

Roman numeral

321 is written "three hundred twenty-one". British English inserts "and" before the final part, giving "three hundred and twenty-one"; American English leaves it out.

Where each word comes from

300 + 20 + 1 = 321
Digit	Place	Worth	Spoken as
3	hundreds	300	three hundred
2	tens	20	twenty
1	ones	1	one

The same number, other ways

In words (US): Three hundred twenty-one
In words (UK): Three hundred and twenty-one
Ordinal: 321st — three hundred twenty-first
Roman numeral: CCCXXI
Digits: 321

Writing it on a cheque

On a cheque the amount line reads "Three hundred and twenty-one and 00/100" — or "Three hundred and twenty-one only" in Indian and much of Commonwealth practice. The fraction or the word "only" exists to stop anyone appending digits after what you wrote. Draw a line through any space left over for the same reason.

Common questions

How do you write 321 in words?: Three hundred twenty-one. In British English, "three hundred and twenty-one".
What is the ordinal of 321?: Three hundred twenty-first, written 321st.

321 in Roman numerals CCCXXI
318 in words three hundred eighteen
319 in words three hundred nineteen
320 in words three hundred twenty
322 in words three hundred twenty-two
0 in words zero
8 in words eight
11 in words eleven
12 in words twelve
13 in words thirteen
15 in words fifteen
19 in words nineteen
20 in words twenty

Sources

Calculated on this page — At One Place

How these figures are compiled and checked