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Numbers › Roman numerals
Roman numerals
The Romans used letters: I, V, X, L, C, D, M. Stack them up and you get any number from 1 to 3999.
Roman numerals
Type any number from 1 to 3999 and see it in the Roman alphabet.
MMXXVI
I
1
V
5
X
10
L
50
C
100
D
500
M
1000
The two rules
- Add when smaller letters come after: VI = 5 + 1 = 6.
- Subtract when a smaller letter comes before: IV = 5 − 1 = 4.
Where you'll still see them
Movie copyright dates, watch faces, Super Bowl numbers, kings and queens. Roman numerals haven't fully retired.