How do you write 12 in Roman numerals?

12 is written as XII in Roman numerals: 12 = 10 (X) + 2 (II). The symbols are then written from largest to smallest value.

What does XII stand for?

XII stands for the number 12. Reading left to right: X = 10, II = 2.

How do you write "12th" in Roman numerals?

Ordinal numbers use the same numerals as cardinal numbers, so "12th" is written XII — Roman notation has no separate ordinal form.

12 in Roman Numerals

How to write the number 12 in Roman numerals, with the full place-value breakdown.

The number 12 in Roman numerals

XII

Place-value breakdown

12 = 10 + 2, so XII = X + II. Roman numerals are written from largest to smallest value, left to right:

Place	Value	Roman	Rule
Tens	10	X	Additive rule: X = 10 (symbols are simply added)
Ones	2	II	Additive rule: II = 2 (symbols are simply added)

About the number 12

The number 12 is written XII in Roman numerals.

Looking for the ordinal form — "12th in Roman numerals"? Roman notation makes no distinction between cardinal and ordinal numbers, so "12th" is also written XII.

Convert any number

Number (1-3999)

Roman numeral

XII