300 in Words
How do you write 300 in words?
The number 300 is written three hundred in words. As an ordinal it is three hundredth, and on a check you would write Three hundred and 00/100.
Last updated 24 August 2026
Other ways to write it
| Cardinal | three hundred |
|---|---|
| Ordinal | three hundredth |
| Currency | three hundred dollars |
| Check format | Three hundred and 00/100 |
How 300 is written
300 occupies one place value, 300 in the hundreds place, and is written three hundred.
Its ordinal form is three hundredth — only the final element takes the ordinal ending — and on a check the amount line reads "Three hundred and 00/100", where 00/100 stands for zero cents.
For house-style rules on spelling out numbers, see the Chicago Manual of Style.
Facts about 300
- 300 is an even number.
- It is not a prime number.
- Digit sum: 3.
- Roman numerals: CCC.
- Binary: 100101100.
- Hexadecimal: 12C.
| Digit | Place |
|---|---|
| 3 | hundreds |
| 0 | tens |
| 0 | ones |
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Frequently asked questions
How do you write 300 in words?
300 in words is "three hundred".
How do you spell 300?
300 is spelled "three hundred".
How do you write 300 on a check?
On a check, write "Three hundred and 00/100".