How to spell 40
40 is spelled forty in English.
Quick reference
| US English (Cardinal) | forty |
|---|---|
| Ordinal (40th) | fortieth |
| On a US Check | Forty and 00/100 dollars |
| Roman Numeral | XL |
| Binary / Hexadecimal | 101000₂ · 0x28 |
On a check
To write $40.00 on a check, the words line reads:
Forty and 00/100