Free online Roman numeral converter with bidirectional conversion between numbers and Roman numerals. Supports 1-3999 range. One-click copy. π No registration Β· Data never uploaded
ποΈ Roman Numeral Converter
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π Result Chart
π Everything runs locally: οΈ Roman Numeral Converter and other values are processed on your device, never sent to a server. No data is ever uploaded.
β FAQ
What are Roman numerals?
Roman numerals are an ancient number system using I(1), V(5), X(10), L(50), C(100), D(500), M(1000).
What range is supported?
This tool supports numbers from 1 to 3999. Zero and negative numbers don't exist in Roman numerals.
Why is 4 written as IV not IIII?
The standard rule uses subtractive notation: IV=4. While clocks sometimes use IIII, the standard Roman numeral system uses IV.