Roman Numeral Converter
Convert numbers to Roman numerals and Roman numerals to numbers instantly.
Roman Numeral Reference
Online Roman Numeral Converter
Roman numerals are a traditional number system that uses letters such as I, V, X, L, C, D, and M to represent numbers. They are still commonly seen in clocks, books, historical dates, movie titles, events, outlines, and educational materials.
Our Online Roman Numeral Converter makes it easy to convert regular numbers into Roman numerals and Roman numerals back into numbers. Simply enter your value, choose the required conversion mode, and get the result instantly.
What Is a Roman Numeral Converter?
A Roman Numeral Converter is an online tool that converts standard numbers, also called Arabic numerals, into Roman numeral notation. It can also perform the reverse conversion from Roman numerals to regular numbers.
For example, entering 2026 produces MMXXVI, while entering MCMXCV produces 1995.
How to Convert Numbers to Roman Numerals
Using this online Roman numeral converter is simple:
- Select Number → Roman.
- Enter a whole number between 1 and 3999.
- Click the Convert button.
- Your Roman numeral will appear in the result box.
- Use the Copy button to copy the result.
For example, entering 49 gives XLIX, while entering 1000 gives M.
How to Convert Roman Numerals to Numbers
You can also use the tool in reverse. Select Roman → Number, enter a valid Roman numeral, and click Convert.
For example:
- IV = 4
- XL = 40
- XC = 90
- CD = 400
- CM = 900
- MMXXVI = 2026
Roman Numeral Symbols and Their Values
Roman numerals are based on seven primary symbols. Each symbol has a specific numerical value.
| Roman Symbol | Value |
|---|---|
| I | 1 |
| V | 5 |
| X | 10 |
| L | 50 |
| C | 100 |
| D | 500 |
| M | 1000 |
Examples of Roman Numeral Conversion
Here are some common examples:
- 1 = I
- 4 = IV
- 9 = IX
- 14 = XIV
- 40 = XL
- 49 = XLIX
- 90 = XC
- 400 = CD
- 900 = CM
- 1995 = MCMXCV
- 2026 = MMXXVI
- 3999 = MMMCMXCIX
Why Use Our Online Roman Numeral Converter?
- Fast and easy Roman numeral conversion
- Supports both number-to-Roman and Roman-to-number conversion
- Works directly in your web browser
- No software installation is required
- Includes input validation for invalid values
- Copy the result with one click
- Works on desktop, tablet, and mobile devices
- Supports standard Roman numerals from 1 to 3999
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Frequently Asked Questions About Roman Numerals
What is a Roman numeral converter?
A Roman numeral converter is an online tool that converts regular numbers into Roman numerals and can also convert valid Roman numerals back into regular numbers.
What is 2026 in Roman numerals?
The Roman numeral representation of 2026 is MMXXVI.
What is 1995 in Roman numerals?
The Roman numeral representation of 1995 is MCMXCV.
What is 49 in Roman numerals?
49 is written as XLIX in Roman numerals.
What are the seven Roman numeral symbols?
The seven main Roman numeral symbols are I, V, X, L, C, D, and M, representing 1, 5, 10, 50, 100, 500, and 1000 respectively.
What is the largest number supported by this converter?
This converter supports standard Roman numeral values from 1 to 3999.
Can I convert Roman numerals back to numbers?
Yes. Select the Roman → Number mode, enter a valid Roman numeral, and the converter will return its corresponding number.
Is this Roman Numeral Converter free?
Yes. The online Roman Numeral Converter can be used directly in your browser without installing additional software.
Conclusion
Roman numerals continue to be useful in education, historical references, books, clocks, events, and many other situations. This Online Roman Numeral Converter provides a quick way to convert between regular numbers and Roman numerals. Enter your value, choose the conversion direction, and get an accurate result instantly.
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