23 = XXIII
23 in Roman numerals is XXIII.
Twenty-three written with the letters X X I I I.
23 in words: Twenty-three
Twenty-three in Roman numerals is XXIII. You build it as XX (20) + III (3), writing the larger part first and reading left to right.
Everything in XXIII is additive here, so you simply add each letter's value together. Numbers like this are a good place to get comfortable before tackling the subtractive forms such as IV and IX.
How 23 breaks down
Reading XXIII from left to right, each group is added together to reach 23:
| Group | Value | Place |
|---|---|---|
| XX | 20 | tens |
| III | 3 | ones |
| XXIII | 23 | total |
Frequently asked questions
What is 23 in Roman numerals?
23 in Roman numerals is XXIII.
How do you write 23 in words?
23 is written "Twenty-three" in English.
What number comes before XXIII?
The number before XXIII is 22, written XXII in Roman numerals.
What number comes after XXIII?
The number after XXIII is 24, written XXIV in Roman numerals.
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Last updated July 22, 2026. Reviewed for accuracy against the standard rules for Roman numerals.