Type a number (1–3999) to see it in Roman numerals
Type Roman numerals to see the number
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Roman Numeral Tips
🔤 Seven Symbols
Every Roman numeral is built from just seven letters: I=1 V=5 X=10 L=50 C=100 D=500 M=1000
➕ Add When It Gets Smaller
Usually you just add the symbols up left to right: VII = 5 + 1 + 1 = 7
➖ Subtract When It Gets Bigger
If a smaller symbol comes right before a bigger one, you subtract it instead: IV = 5 − 1 = 4, IX = 10 − 1 = 9
🚫 No Zero, No Repeating Too Much
The Romans didn't have a symbol for zero, and you never repeat a letter more than three times in a row — that's why 4 is IV, not IIII.
🎬 Where You'll Spot Them
Movie credits, Super Bowl numbers, clock faces, and the last page of a book's introduction often use Roman numerals instead of regular digits.