Roman Numeral Converter
Turn a number into a Roman numeral, or find out what a Roman numeral means.
Your data stays on your device.
Free, no sign-up needed.
Number to Roman numeral
Enter a number.
Roman numeral to number
Enter a Roman numeral.
Features
- Numbers 1 to 3999
- Both directions on one page
- Checks that the numeral is written correctly
- Runs on your device
How to use Roman Numeral Converter
- Enter a number, or a Roman numeral.
- Read the result next to it.
- Copy it.
Frequently asked questions
How do Roman numerals work?
Seven letters stand for numbers: I is 1, V is 5, X is 10, L is 50, C is 100, D is 500 and M is 1000. Letters are added, and a smaller letter in front of a bigger one is subtracted, so IV is 4 and IX is 9.
What is 2026 in Roman numerals?
MMXXVI: MM is 2000, XX is 20 and VI is 6.
Why does the tool stop at 3999?
Standard Roman numerals use at most three of the same letter in a row, so MMMCMXCIX (3999) is the largest number that can be written.
Is there a Roman numeral for zero?
No. The Romans had no symbol for zero. Sometimes N for nulla is used in later texts.