1 in Roman numerals
1 in Roman numerals
I
1 is written I in Roman numerals. That is 1 symbol group added together, reading left to right from the largest value down.
How it breaks down
| Group | Value | Subtraction | Running total |
|---|---|---|---|
| I | 1 | — | 1 |
No subtraction needed
I is purely additive — every symbol is simply added to the one before it, with no subtractive pairs like IV or IX. Numbers avoid subtraction when none of their digits is a 4 or a 9.
The symbols
| Symbol | Value | Used here |
|---|---|---|
| I | 1 | yes — 1× |
| V | 5 | no |
| X | 10 | no |
| L | 50 | no |
| C | 100 | no |
| D | 500 | no |
| M | 1,000 | no |
The same number, other ways
- In words
- One
- Roman numeral
- I
- Symbol count
- 1 characters
- Binary
- 1
- Hexadecimal
- 1
The numbers either side
| Number | Roman numeral |
|---|---|
| 1 | I ← |
| 2 | II |
| 3 | III |
Common questions
- What is 1 in Roman numerals?
- 1 is I.
- What does I mean?
- I is the Roman numeral for 1 — 1.
- How do you write 1 in Roman numerals?
- Take the largest value that fits and repeat until nothing is left: I (1). That gives I.
Related pages
Sources
- Calculated on this page — At One Place