33 = XXXIII
33 in Roman numerals is XXXIII.
Thirty-three written with the letters X X X I I I.
33 in words: Thirty-three
Thirty-three in Roman numerals is XXXIII. You build it as XXX (30) + III (3), writing the larger part first and reading left to right.
Everything in XXXIII 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 33 breaks down
Reading XXXIII from left to right, each group is added together to reach 33:
| Group | Value | Place |
|---|---|---|
| XXX | 30 | tens |
| III | 3 | ones |
| XXXIII | 33 | total |
Frequently asked questions
What is 33 in Roman numerals?
33 in Roman numerals is XXXIII.
How do you write 33 in words?
33 is written "Thirty-three" in English.
What number comes before XXXIII?
The number before XXXIII is 32, written XXXII in Roman numerals.
What number comes after XXXIII?
The number after XXXIII is 34, written XXXIV in Roman numerals.
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Last updated July 22, 2026. Reviewed for accuracy against the standard rules for Roman numerals.