How do you write 1 in Roman numerals?

Answer I

1 = 1 (I)

Number1
Roman numeralI
Breakdown1 (I)
Letters1

To write 1 in Roman numerals, split it into thousands, hundreds, tens and units and write each part: 1 (I). Put together, that gives I.

Roman numerals use seven letters: I = 1, V = 5, X = 10, L = 50, C = 100, D = 500 and M = 1000. A smaller letter in front of a larger one is subtracted (IV = 4, IX = 9, XL = 40, XC = 90, CD = 400, CM = 900); otherwise the values are added.

Nearby numbers in Roman numerals

NumberRoman numeral
2II
3III
4IV
5V
6VI
7VII

Try another value

Frequently asked questions

What is 1 in Roman numerals?

1 is written as I.

How is I built?

I = 1 (I).

What is the largest Roman numeral?

With standard letters the largest number is 3999, written MMMCMXCIX.