Number
3 in Roman numerals
3 is written III
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 III is built
Roman numerals are written one decimal place at a time, largest first.
- IIIones · 3I written 3 times: 3 × 1 = 3.
About the number 3
- 3 is a prime number: only 1 and 3 divide it exactly.
- III has 3 letters. 907 of the numbers up to 1,000 have longer numerals.
- On a clock face, 3 o'clock is III.
- As a month in a date, III is March.
- As a day of the month, III is the 3rd. Write a date
Counting from 1 to 10
| Number | Roman numeral |
|---|---|
| 1 | I |
| 2 | II |
| 3 | III |
| 4 | IV |
| 5 | V |
| 6 | VI |
| 7 | VII |
| 8 | VIII |
| 9 | IX |
| 10 | X |