45 in Roman Numerals
XLV
45 in Roman numerals is XLV, and is spelled forty-five.
How 45 breaks down
To write 45 in Roman numerals, combine XL (40) and V (5) to get XLV.
| Value | Roman |
|---|---|
| 40 | XL |
| 5 | V |
| 45 | XLV |
You can open 45 in the converter or browse the full Roman numerals chart.