Arabic to Roman Numeral Converter

Convert Arabic numbers (1-3999) to their Roman numeral equivalents

Input Parameters

Calculation Results

Roman Numeral Result

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Where:
Roman numerals are represented by combinations of letters from the Latin alphabet:
I = 1, V = 5, X = 10, L = 50, C = 100, D = 500, M = 1000

Arabic to Roman Numeral Converter Calculator Usage Guide

Learn how to use the Arabic to Roman Numeral Converter calculator and its working principles

How to Use the Calculator

  1. Enter an Arabic number between 1 and 3999 in the input field.
  2. Click the "Calculate" button to convert the number to its Roman numeral equivalent.
  3. The Roman numeral result will be displayed in the results area.
  4. Click "Reset" to clear the input and result fields.

Working Principle

Roman numerals are represented by combinations of letters from the Latin alphabet. The basic symbols and their values are:

  • I = 1
  • IV = 4
  • V = 5
  • IX = 9
  • X = 10
  • XL = 40
  • L = 50
  • XC = 90
  • C = 100
  • CD = 400
  • D = 500
  • CM = 900
  • M = 1000

The converter works by subtracting the largest possible Roman numeral values from the input number until the number is reduced to zero.

Limitations

This calculator can only convert numbers from 1 to 3999. Roman numerals do not have a symbol for zero, and they do not use place value (like the Hindu-Arabic numeral system).