Roman Numerals Converter

Convert decimal numbers to Roman numerals and vice versa. Support for values from 1 to 3999.

About Roman Numerals

Roman numerals are a numeral system that originated in ancient Rome and remained the usual way of writing numbers throughout Europe well into the Late Middle Ages. Numbers in this system are represented by combinations of letters from the Latin alphabet.

M
1000
D
500
C
100
L
50
X
10
V
5
I
1

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Tutorial

How to use

1
1

Decimal to Roman

Enter a number between 1 and 3999 in the decimal field to get its Roman equivalent.

2
2

Roman to Decimal

Type Roman letters (I, V, X, L, C, D, M) in the Roman field to see the decimal value.

3
3

Review History

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Use Cases

Use cases

Historical Dates

"Convert years (like 2024 to MMXXIV) for monuments or credits."

Education

"Study ancient numbering systems and understand their logic."

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