Roman Numeral Calculator

Convert between Roman numerals and standard numbers. Perform arithmetic with Roman numerals.

Conversion direction

Result

Roman Numeral

MMXXIV

2024 in Roman numerals

Conversion Steps

2024 >= 1000 => M
1024 >= 1000 => M
24 >= 10 => X
14 >= 10 => X
4 >= 4 => IV
Result: 2024 = MMXXIV

Details

Arabic2,024
RomanMMXXIV
Length6 characters
2021MMXXI
2022MMXXII
2023MMXXIII
2025MMXXV
2026MMXXVI
2027MMXXVII
Calculation Complete

A Roman numeral converter translates between standard Arabic numbers and Roman numeral notation, supporting values from 1 to 3,999.

Choose the conversion direction. To convert a number to Roman numerals, enter a number between 1 and 3,999. To convert Roman numerals to a number, type the Roman numeral string.

Examples

Year 2024

2024 = MM (2000) + XX (20) + IV (4) = MMXXIV.

Parsing MCMXCIX

M=1000, CM=900, XC=90, IX=9. Total: 1000 + 900 + 90 + 9 = 1999.

Frequently Asked Questions

Why is the limit 3,999?
Standard Roman numerals use M (1000) as the largest symbol, and any symbol can repeat at most 3 times. So the maximum is MMMCMXCIX = 3,999. Extended notation with overlines (vinculum) can represent larger numbers.
Is there a Roman numeral for zero?
No. The Romans had no concept of zero as a number. The word "nulla" (meaning "nothing") was sometimes used as a placeholder, but there is no Roman numeral symbol for zero.
How do you write 4 and 9 in Roman numerals?
4 is IV and 9 is IX: a smaller symbol placed before a larger one is subtracted from it. The same rule gives 40 (XL), 90 (XC), 400 (CD) and 900 (CM). Only I, X and C are used this way, and only before the next two larger symbols — so 99 is XCIX, not IC.
How do you write 2026 in Roman numerals?
2026 is MMXXVI: MM for 2,000, XX for 20 and VI for 6. Write the thousands, hundreds, tens and units in that order, converting each place separately.
Why do some clocks show IIII instead of IV?
Mostly tradition. Many clock and watch faces use IIII for 4, a form that was common in Roman inscriptions too. Explanations offered include visual balance with VIII on the opposite side of the dial, but there is no single documented reason. In standard notation, 4 is IV.
Related Calculators
Unit Converter
Binary Calculator
Hex Calculator
Rounding Calculator

Quick Tips

  • •Standard Roman numerals only go up to 3,999 (MMMCMXCIX).
  • •A numeral can be repeated up to 3 times (III=3, XXX=30, CCC=300, MMM=3000).
  • •Roman numerals have no zero — they were used for counting, not arithmetic.
  • •Clock faces traditionally use IIII for 4 instead of IV.