Roman Numeral Converter
Numbers to Roman numerals and back, from 1 to 3,999,999
Number
Roman numeral
= 1,994
How it's built
Largest first, a smaller symbol before a larger one is taken away from it (highlighted), a bar multiplies by 1,000
1,994
Symbols
1
5
10
50
100
500
1,000
Only I, X and C are taken away, from the next two symbols up: IV (4), IX (9), XL (40), XC (90), CD (400) and CM (900). A symbol is repeated at most three times, IIII is the clock-face form of IV.
How to convert Roman numerals
- Type a number to see it as a Roman numeral, or a Roman numeral to see its number.
- See how the numeral is built, e.g. M + CM + XC + IV = 1994.
- Copy the numeral, in capitals or lowercase, or copy the link to share it.
Questions
How do Roman numerals work?
The symbols I (1), V (5), X (10), L (50), C (100), D (500) and M (1,000) are added from largest to smallest; a smaller one before a larger one is taken away, so IV is 4 and CM is 900.
What is the largest Roman numeral?
Without special signs, 3,999 (MMMCMXCIX). With a bar over a numeral, which multiplies it by 1,000, the converter goes up to 3,999,999.
Is IIII a valid Roman numeral?
It's read, as on some clock faces, and its standard form, IV, is given.
How do I write this year in Roman numerals?
Type the year: 2026 is MMXXVI.