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This calculator is designed to help you calculate the equivalent Roman Numeral from any number entered, or vice versa.

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Calculate Number → Roman Numeral
Enter Number
Equivalent Roman Numeral
Calculate Roman Numeral → Number
Enter Roman Numeral
Equivalent Number


  1. As the name suggests, Roman numerals originated in ancient Rome. They are a numeral system that uses seven letters from the Latin alphabet as shown below. Each letter has a fixed numerical value and can be combined using specific rules to represent modern numbers.
I 1
V 5
X 10
L 50
C 100
D 500
M 1000




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