1 in Roman Numerals
1 = I
1 is written I in Roman numerals.
Step by step
- Split 1 into place values: 1.
- 1 = I
- Join them from largest to smallest: I.
To read I back, go from left to right and add each value, treating a smaller symbol before a larger one as a single subtracted pair: I (1) = 1.
Details
- Symbols used
- I = 1
- Roman numeral
- I
- Breakdown
- I
- Number of symbols
- 1
- Lowercase
- i
- Uses subtraction
- No
How it works
Roman numerals combine seven symbols — I (1), V (5), X (10), L (50), C (100), D (500) and M (1,000). Write each place value of the number separately, from thousands down to ones, and join the results. Six subtractive pairs replace four repeated symbols: IV (4), IX (9), XL (40), XC (90), CD (400) and CM (900). No symbol appears more than three times in a row.
Nearby values
Related conversions
Frequently asked questions
What is 1 in Roman numerals?
I.
How do you write 1 in Roman numerals?
Break it into I (1) and write I.
What number is I?
I = 1.
What is the largest standard Roman numeral?
3,999, written MMMCMXCIX.