Roman Numerals
Convert numbers ↔ Roman numerals (1–3999), live.
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Quick reference
I = 1 · V = 5 · X = 10 · L = 50 · C = 100 · D = 500 · M = 1000
Subtractive pairs: IV = 4 · IX = 9 · XL = 40 · XC = 90 · CD = 400 · CM = 900
Convert numbers ↔ Roman numerals (1–3999), live.
I = 1 · V = 5 · X = 10 · L = 50 · C = 100 · D = 500 · M = 1000
Subtractive pairs: IV = 4 · IX = 9 · XL = 40 · XC = 90 · CD = 400 · CM = 900