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Free Roman Numeral Converter

Convert between Roman numerals and decimal numbers easily.

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Roman Numerals Overview

Roman Numeral Basics

Roman numerals are a numeral system that originated in ancient Rome. They are based on certain letters of the alphabet which are combined to signify the sum (or, in some cases, the difference) of their values.

The basic symbols are: I (1), V (5), X (10), L (50), C (100), D (500), and M (1000).

Roman Numeral Rules

1. Numerals must be arranged in descending order of size.

2. M, C, and X cannot be equalled or exceeded by smaller denominations.

3. D, L, and V can each only appear once.

Common Examples

I = 1

V = 5

X = 10

L = 50

C = 100

D = 500

M = 1000

IV = 4

IX = 9

XL = 40

XC = 90

CD = 400

CM = 900

MCMXCIV = 1994

About the Roman Numeral Converter Tool

The Roman Numeral Converter tool is a free online solution for converting between Roman numerals and decimal numbers. With the Roman Numeral Converter tool, you can quickly switch between formats for study, teaching, or fun. This tool is completely free and requires no login, making it accessible for everyone who needs fast and accurate Roman numeral conversions.

Whether you are a student, teacher, or history enthusiast, the Roman Numeral Converter tool streamlines your workflow by providing instant results. Enjoy unlimited conversions with no login required and no hidden fees—just a simple, user-friendly interface for all your Roman numeral needs.

FAQ About the Roman Numeral Converter Tool

  • Is the Roman Numeral Converter tool free to use?
    Yes, the Roman Numeral Converter tool is completely free and does not require any login or registration.
  • What can I convert with the Roman Numeral Converter?
    You can convert between Roman numerals and decimal numbers. The tool is free and requires no login.
  • Do I need to create an account to use the Roman Numeral Converter?
    No, you can use the Roman Numeral Converter tool instantly with no login required.

How to Use the Roman Numeral Converter Tool

  1. Select your conversion type in the Roman Numeral Converter tool.
  2. Enter your number or Roman numeral and click convert.
  3. The tool is free and requires no login, so you can convert as many values as you need.