43 in Roman numerals at a glance
- Roman numeral
- XLIII
- Lowercase
- xliii
- Letters
- 5
- Parts
- XL · I · I · I
- Subtractive pairs
- XL
- In words
- forty-three
- Latin name
- quadraginta tres
How XLIII is built
Roman numerals are written one decimal place at a time, from the largest place to the smallest. Converting each digit of 43 separately and joining the pieces gives XLIII:
| Place | Digit | Value | Numeral |
|---|---|---|---|
| Tens | 4 | 40 | XL |
| Ones | 3 | 3 | III |
Reading it back, left to right:
- XL = 40 (L minus X) → running total 40
- I = 1 → running total 41
- I = 1 → running total 42
- I = 1 → running total 43
The rules XLIII follows
- Largest to smallest. XLIII uses the symbols X, L and I (5 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 XLIII 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 43
- XXXXIII — wrong because standard numerals never repeat a symbol four times; 40 is written XL. The correct form is XLIII.
Where you will see XLIII
- Championship games. Pro football numbers its championship game with Roman numerals, starting from game I in January 1967. Game XLIII was played in early 2009.
- Volumes and sequels. Book volumes, conference editions, film sequels and anniversary events often carry a Roman numeral; edition XLIII would be the 43rd.
Numbers near 43 in Roman numerals
Frequently asked questions
How do you write 43 in Roman numerals?
43 is written XLIII. Break it into XL (40), I (1), I (1), I (1) and add the parts: 40 + 1 + 1 + 1 = 43.
Is XXXXIII a correct way to write 43?
No. XXXXIII is wrong because standard numerals never repeat a symbol four times; 40 is written XL. The standard numeral for 43 is XLIII.
What is 43 in Latin?
The Latin cardinal number 43 is “quadraginta tres.” The Romans wrote it as XLIII.
What is XLIII plus one?
XLIII + I = XLIV (44). Adding one can change the whole ending of a numeral, which is why it helps to convert to digits, add, and convert back.