100 in Roman numerals
C
The number 100 is written C in Roman numerals.
How C breaks down
| Symbols | Value |
|---|---|
C | 100 |
C | 100 |
Every symbol here is written in descending order and simply added together — no subtractive pairs are involved.
Nearby numbers
| Number | Roman numeral |
|---|---|
| 95 | XCV |
| 96 | XCVI |
| 97 | XCVII |
| 98 | XCVIII |
| 99 | XCIX |
| 100 | C |
| 101 | CI |
| 102 | CII |
| 103 | CIII |
| 104 | CIV |
| 105 | CV |
The seven symbols
I | 1 | C | 100 |
V | 5 | D | 500 |
X | 10 | M | 1,000 |
L | 50 |
100 in other notations
| Roman | C |
| Binary | 1100100 |
| Hexadecimal | 64 |
| Octal | 144 |
| Written out | one hundred |
Writing it by hand
Work down through the symbol values, taking as many of each as will fit before moving to the next. For 100:
C = 100 remaining: 0The result reads C — 1 character, against 3 digits in Arabic numerals.
Frequently asked questions
What is 100 in Roman numerals?
C
How do you read C?
Work left to right, adding each symbol — except where a smaller symbol precedes a larger one, in which case it is subtracted. C is 100.
How do you write 100 in words?
one hundred.
Why is there no zero?
Roman numerals have no symbol for zero. The concept reached Europe only with Hindu-Arabic numerals, centuries after the system was in use — which is a large part of why it was eventually replaced for arithmetic.