RomaNums

Your ultimate Roman numerals tool. Convert, learn, and download complete lists.

What Are Roman Numerals?

Roman numerals are a numeral system developed in ancient Rome over 2,000 years ago. They use combinations of Latin letters (I, V, X, L, C, D, M) to represent values. Unlike the decimal system, Roman numerals have no symbol for zero and rely on adding and subtracting symbols to form numbers.

๐Ÿ“Š The 7 Basic Symbols

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

๐Ÿ“– Essential Rules

โž• Addition

Smaller symbol on right = add. Ex: VI = 5 + 1 = 6

โž– Subtraction

Smaller symbol on left = subtract. Ex: IV = 5 - 1 = 4

๐Ÿ”„ Repetition

I, X, C, M can repeat up to 3 times. Ex: III = 3

๐ŸŒ Where Are They Used Today?

โŒš

Clocks & Watches

๐Ÿˆ

Super Bowl

๐Ÿ‘‘

Kings & Popes

๐ŸŽฌ

Movies

๐Ÿ“š

Books

๐Ÿ›๏ธ

Architecture

๐Ÿ“‹ Quick Reference

NumberRomanNumberRoman
1I50L
4IV90XC
5V100C
9IX400CD
10X500D
40XL1000M