80 in Roman Numerals

LXXX

50 + 30 = 80

LXXX breaks down as L + XXX (L = 50, XXX = 30), which add up to 80.

How 80 is written in Roman numerals

The number 80 is written LXXX in Roman numerals. Roman numerals use seven letters — I (1), V (5), X (10), L (50), C (100), D (500) and M (1000) — combined from largest to smallest, with subtractive pairs such as IV (4) and IX (9). Need another number? Use the Roman numeral converter or see the 1–100 chart.

Nearby numbers

LX60 LXX70 XC90 XCIX99

Popular numbers in Roman numerals

IV4 IX9 X10 XL40 XLIX49 L50 XC90 XCIX99 C100 D500 M1000 MMXXV2025 ☰1–100 chart ⇄Converter

Frequently Asked Questions

What is 80 in Roman numerals?

80 in Roman numerals is LXXX.

How do you write 80 in Roman numerals?

Write 80 as LXXX, combining L (50) + XXX (30). Roman numerals are built by adding symbols from largest to smallest, using subtractive pairs like IV and IX where needed.