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1 in Roman Numerals

The number 1 written in Roman numerals is I.

1
=
I
Reverse lookup

Looking up the other way? I in Arabic numbers is 1. Use the full converter to enter any Roman numeral:

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Nearby numbers

2

II

3

III

4

IV

5

V

6

VI

7

VII

8

VIII

9

IX

10

X

11

XI

12

XII

13

XIII

14

XIV

15

XV

16

XVI

17

XVII

Frequently asked questions
What is 1 in Roman numerals?
1 in Roman numerals is I. The symbol I has a value of 1.
How do you write 1 in Roman numerals?
To write 1 in Roman numerals, identify the largest Roman symbols that fit: 1 = I. Write them left to right: I.
What does I mean?
I is the Roman numeral for 1. The single symbol I represents 1.
What is the range of Roman numerals?
Standard Roman numerals cover 1 to 3,999 (I to MMMCMXCIX). Numbers outside this range cannot be represented with the classic seven symbols: I, V, X, L, C, D, M.
Convert any number

The full Roman Numeral Converter lets you convert any number from 1 to 3,999 in both directions — Arabic to Roman and Roman to Arabic — instantly in your browser.

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