48 in Roman numerals at a glance
- Roman numeral
- XLVIII
- Lowercase
- xlviii
- Letters
- 6
- Parts
- XL · V · I · I · I
- Subtractive pairs
- XL
- In words
- forty-eight
- Latin name
- duodequinquaginta
How XLVIII is built
Roman numerals are written one decimal place at a time, from the largest place to the smallest. Converting each digit of 48 separately and joining the pieces gives XLVIII:
| Place | Digit | Value | Numeral |
|---|---|---|---|
| Tens | 4 | 40 | XL |
| Ones | 8 | 8 | VIII |
Reading it back, left to right:
- XL = 40 (L minus X) → running total 40
- V = 5 → running total 45
- I = 1 → running total 46
- I = 1 → running total 47
- I = 1 → running total 48
The rules XLVIII follows
- Largest to smallest. XLVIII uses the symbols X, L, V and I (6 characters in all), and the values never increase from left to right except inside a subtractive pair.
- Subtraction. XL (40) is a subtractive pair: a smaller symbol in front of a larger one is taken away from it. Only six pairs are allowed — IV, IX, XL, XC, CD and CM — and XLVIII uses one of them.
- Repetition. III repeats I three times. I, X, C and M may repeat up to three times in a row; V, L and D never repeat.
Common mistakes when writing 48
- XXXXVIII — wrong because standard numerals never repeat a symbol four times; 40 is written XL. The correct form is XLVIII.
Where you will see XLVIII
- Championship games. Pro football numbers its championship game with Roman numerals, starting from game I in January 1967. Game XLVIII was played in early 2014.
- Volumes and sequels. Book volumes, conference editions, film sequels and anniversary events often carry a Roman numeral; edition XLVIII would be the 48th.
Latin itself counted backwards here: duodequinquaginta means “two from fifty,” the same subtractive idea that Roman numerals use in pairs such as IX and XC — although the numeral for 48 is written XLVIII, not by subtracting from 50.
Numbers near 48 in Roman numerals
Frequently asked questions
How do you write 48 in Roman numerals?
48 is written XLVIII. Break it into XL (40), V (5), I (1), I (1), I (1) and add the parts: 40 + 5 + 1 + 1 + 1 = 48.
Is XXXXVIII a correct way to write 48?
No. XXXXVIII is wrong because standard numerals never repeat a symbol four times; 40 is written XL. The standard numeral for 48 is XLVIII.
What is 48 in Latin?
The Latin cardinal number 48 is “duodequinquaginta.” The Romans wrote it as XLVIII.
What is XLVIII plus one?
XLVIII + I = XLIX (49). Adding one can change the whole ending of a numeral, which is why it helps to convert to digits, add, and convert back.