Roman Numeral — XIX (19) — free printable diagram

What is XIX in Roman numerals?

XIX is the Roman numeral for 19 — nineteen. Written the other way round, 19 in Roman numerals is XIX.

Roman numeral

XIX

Number

19

In words

nineteen

Symbols used

I = 1, X = 10

Written as

X (10) + IX (9)

• XIX is built from X (10) + IX (9), which adds up to 19.
• IX uses the subtraction rule: a smaller symbol before a larger one is taken away, so I before X means 10 − 1 = 9.
• Roman numerals are read from left to right, adding each symbol as you go, except where the subtraction rule applies.