XXIV in numbers
XXIV = 24
Working: X = 10, X = 10, IV = 4
The Roman numeral XXIV represents the number 24.
Reading it left to right, the symbols contribute like this: X = 10, X = 10, IV = 4. Roman numerals are read by adding values together, except where a smaller symbol sits immediately before a larger one — that pairing means subtraction, which is why IV is 4 rather than 6.
Structurally, XXIV is 4 symbols long. It uses the subtractive pair and IV, which must be read as a unit rather than symbol by symbol. The longest run is 2 identical symbols.
XXIV is twenty followed by a subtractive four. It appears frequently in event and edition numbering, and it is short enough — four symbols for a two-digit number — to work well in engraving and titling.
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Frequently asked questions
What number is XXIV in Roman numerals?
XXIV is 24. The symbols break down as X = 10, X = 10, IV = 4.
Why is IV four and not six?
When a smaller symbol comes immediately before a larger one it is subtracted instead of added. I before V means five minus one, giving four. VI, with the I after the V, means five plus one, giving six.
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For any other value, use the full Roman Numeral Converter on BrainVert.