🏛️ Roman Numeral Converter
Convert numbers to Roman numerals and back.
Roman numeral
MCMXCIX
I
1
V
5
X
10
L
50
C
100
D
500
M
1000
Standard modern numerals (1–3999) — validated both ways, entirely in your browser.
More tools from ToolHord
Palindrome Checker Check if text reads the same forwards and backwards. Text & Data Line Deduplicator Remove duplicate lines from any text instantly. Text & Data Random Line Shuffler Randomize the order of any lines. Generators Detailed Text Stats Character-level analysis: letters, digits, symbols & more. Text & Data