Roman Numeral Reference Chart
| Symbol | Value | Symbol | Value |
|---|---|---|---|
| I | 1 | L | 50 |
| IV | 4 | XC | 90 |
| V | 5 | C | 100 |
| IX | 9 | CD | 400 |
| X | 10 | D | 500 |
| XL | 40 | CM | 900 |
| — | — | M | 1000 |
Roman Numeral Converter
Convert any number to Roman numerals or translate Roman numerals back to standard numbers. Supports values 1 through 3,999. Includes a reference chart for all standard symbols.
Roman Numeral Translator
Frequently Asked Questions
Why don't Roman numerals go beyond 3,999?
Standard Roman numerals use M as the highest single symbol (1000), and the maximum repetition is three (MMM = 3000). Adding CM (900) and XCIX (99) gives 3999. Larger numbers were historically written with a bar over symbols to multiply by 1000, but this is not standard today.
What year is MMXXVI in Roman numerals?
MMXXVI = 2026. MM = 2000, XX = 20, VI = 6. Roman numerals are still used today for copyright years, Super Bowl numbers, clock faces, movie sequels, and more.
About the Roman Numeral Converter
This free roman numeral converter helps you get accurate results instantly without needing to work through the math manually. Whether you need a quick estimate or a precise figure, having a reliable tool on hand saves time and reduces errors compared to manual calculation.
How to Use This Calculator
- Enter your values in the input fields above. Each field is labeled to guide you.
- Double-check your inputs — results are only as accurate as the numbers you enter.
- Click the Calculate button to see your result instantly.
- Use the result for your planning, budgeting, or decision-making.
Why Accurate Calculations Matter
Small errors in general calculations can compound into significant problems. A 1% miscalculation in a budget or measurement can translate to hundreds or thousands of dollars in wasted resources, or result in having to redo work entirely. This calculator uses the standard formulas and methods to give you reliable results you can trust.
Tips for Getting the Best Results
- Use consistent units throughout (all in feet, all in dollars, etc.)
- For estimates, add a 10% buffer to account for real-world variables
- Save your result by taking a screenshot or writing it down before closing the page
- For decisions involving significant money or safety, verify results with a qualified professional
Frequently Asked Questions
Is this calculator free? Yes — completely free with no account, login, or payment required. Use it as many times as you need.
How accurate are the results? This calculator uses the standard formulas for roman numeral converter calculations. Results are accurate for typical use cases. For specialized or high-stakes applications, consult a professional.
Does it work on mobile? Yes. This calculator is fully responsive and works on smartphones, tablets, and desktops.