Live conversion
Preview the numeral as you type. Submit the form to add the translation to a personal history log, perfect for preparing slides, puzzles, or kata practice.
XXXVIRoman numeral
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Roman Numeral Converter
Quickly translate decimal numbers into classical numerals.
A responsive utility inspired by coding interview warmups. Type any whole number between 1 and 3,999 to see the additive and subtractive notation rendered instantly, then stash your favourite conversions for later reference.
Recent history
The converter stores your six most recent submissions, deduplicated by decimal value. Each entry includes a timestamp from your current locale.
Try saving a conversion to build a quick-reference list.