Number
480 in Roman numerals
480 is written CDLXXX
Type any other number or numeral below to convert it.
Above 3,999? Type the barred part in brackets, e.g. (IV)CC = 4,200.
How CDLXXX is built
Roman numerals are written one decimal place at a time, largest first.
- CDhundreds · 4C before D means 500 − 100 = 400. This saves writing CCCC.
- LXXXtens · 8L (50) plus XXX (30) makes 80.
400 + 80 = 480
The pair CD uses subtraction: a smaller letter before a larger one is taken away from it. Only six pairs work this way: IV, IX, XL, XC, CD and CM. More on subtraction
Mistakes to avoid
- Not LDXXX. It looks like a shortcut, but L is never written before a larger letter to subtract. The correct form is CDLXXX.
- Not CCCCLXXX (8 letters). That adds everything up without subtraction. The Romans sometimes wrote numbers this way, and clocks still show 4 as IIII, but today CDLXXX (6 letters) is the standard.
- There's no letter for zero. The zero is simply left out, which is why 480 has 2 parts, not 3.
About the number 480
- 480 is even and can be split into prime factors: 2 × 2 × 2 × 2 × 2 × 3 × 5, or in Roman numerals II × II × II × II × II × III × V.
- CDLXXX has 6 letters. 396 of the numbers up to 1,000 have longer numerals.
Counting from 471 to 480
Every number from 471 to 480 starts CDLXX (470); only the ending changes.
| Number | Roman numeral |
|---|---|
| 471 | CDLXXI |
| 472 | CDLXXII |
| 473 | CDLXXIII |
| 474 | CDLXXIV |
| 475 | CDLXXV |
| 476 | CDLXXVI |
| 477 | CDLXXVII |
| 478 | CDLXXVIII |
| 479 | CDLXXIX |
| 480 | CDLXXX |