**189** in Roman Numerals is **CLXXXIX**. let’s calculate the roman numerals in simple way and lean it. First split 189 and that will be 100 + 80 + 9.

We know that 80 also has to be represented as a sum of 50 and three 10s. To represent 9 we need to use the subtraction rule and it would be 10 – 1.

## How to Calculate the Roman Numeral

First expand the number i.e,

189 = 100 + 50 + 10 + 10 + 10 + (10 – 1)

189 = C + L + X + X + X + (X – I)

189 = CLXXXIX

Therefore,

189 = CLXXXIX