Roman Numerals
Efficiency · v1.0.0 · runs fully in the browser, data never leaves your device
→
MMXXVI→
2026Symbol table
M = 1000CM = 900D = 500CD = 400C = 100XC = 90L = 50XL = 40X = 10IX = 9V = 5IV = 4I = 1
Only standard subtractive notation (IV, not IIII) is accepted. Strict round-trip validation rejects forms like IIII or VX, so this tool isn't suited to medieval variant spellings.
Batch conversion