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XIV

Roman Numeral Converter

Convert standard numbers to Roman numerals and Roman numerals back to numbers.

Roman Numeral Details

Choose conversion type

Convert a standard integer to Roman numerals or convert a valid Roman numeral back to a number.

Quick Examples

Select one

Standard Roman notation supports whole numbers from 1 to 3999.

IX

Subtractive notation

Roman numerals use combinations such as IV for 4, IX for 9, XL for 40, XC for 90, CD for 400 and CM for 900.

XIV

Your converted value will appear here

Enter a standard number or a Roman numeral and choose the conversion direction.

Roman Numeral Examples

I

1

X

10

C

100

M

1,000

Roman Numeral Reference

Basic Roman numeral symbols

These seven symbols are combined to represent standard Roman numerals.

I

1

V

5

X

10

L

50

C

100

D

500

M

1,000

Common combinations

IV

4

IX

9

XL

40

XC

90

CD

400

CM

900

Simple Process

Convert Roman Numerals in 3 Steps

Choose the conversion direction, enter a number or Roman numeral and get the converted result instantly.

01
01

Choose Conversion

Select Number to Roman or Roman to Number.

02
02

Enter Value

Enter a standard number or a valid Roman numeral.

03
03

View Result

Get the converted value and see how the Roman numeral is built.