# Roman Numeral Converter

URL: https://phishdestroy.io/developer-tools/roman-numeral-converter
Category: Misc
Where it runs: Runs locally (nothing you enter is uploaded)

Convert a number between 1 and 3999 into standard Roman numerals, or type a Roman numeral to get its value.

## Example input

The year 1994

```
1994
```

→ Roman gives MCMXCIV (M + CM + XC + IV).

## FAQ

### Why only 1 to 3999?

Standard Roman numerals have no zero and no symbol above M (1000), so 4000 and up would need overline notation, which the tool does not produce. Fractions are dropped: 12.7 becomes XII.

### Does Roman to Arabic check that a numeral is valid?

No. It adds and subtracts letter values from left to right, so non-standard forms such as IIII (4) or IC (99) are accepted, and a letter other than I, V, X, L, C, D or M gives NaN.

### Is anything sent?

No. Both conversions run in your browser.

## Related tools

- [Number Base Converter](https://phishdestroy.io/developer-tools/number-base-converter)
- [Math Expression Evaluator](https://phishdestroy.io/developer-tools/math-expression-evaluator)
- [Morse Code Translator](https://phishdestroy.io/developer-tools/morse-code-translator)
- [Numeronym Generator](https://phishdestroy.io/developer-tools/numeronym-generator)
- [Date Calculator](https://phishdestroy.io/developer-tools/date-calculator)

All tools: https://phishdestroy.io/developer-tools