120 in Roman Numerals: CXX (Converter and Rules)

120 in Roman numerals is CXX. Split 120 into place values, write each part, and join them. The converter below works for any number from 1 to 3999.

What Is 120 in Roman Numerals?

Read CXX from left to right and add the values: C (100) + XX (20) = 120.

Roman numerals also number book chapters, outlines, and the names of kings and popes.

Convert Any Number to Roman Numerals

120: Thousands, Hundreds, Tens and Ones

PlaceValueRoman
Hundreds100C
Tens20XX
Total120CXX

Write the parts in order from largest to smallest to get CXX.

Roman Numeral Rules Behind CXX

SymbolIVXLCDM
Value1510501005001000
  • Add symbols from largest to smallest: VI = 5 + 1.
  • Repeat I, X, C or M up to three times: XXX = 30.
  • Put a smaller symbol before a larger one to subtract: IV = 4, IX = 9.

CXX has no subtractive pair, so you only add the symbols from left to right.

Roman Numerals Close to 120

See the full list in the Roman numerals chart.

Quick Answers About CXX

What is 120 in Roman numerals?

120 in Roman numerals is CXX.

What is CXX as a number?

CXX equals 120.

How do you write 121 in Roman numerals?

121 in Roman numerals is CXXI.

Is CXX a valid Roman numeral?

Yes. CXX follows the standard rules: symbols run from largest to smallest, and only valid subtractive pairs appear.

Quick Summary

120 is CXX. Split the number into thousands, hundreds, tens and ones, write each part, and join them in order.