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C - Roman to Arabic Numerals Converter

Roman to Arabic Numerals Calculator

Roman Numeral:
Arabic (Number):
Calculator Arabic to Roman Converter
Answer appears here

Convert from Roman to Arabic Numerals. Here is the answer to the question: C or C in Arabic Numrerals.

Use this Roman Numerals converter to compute any Roman number between I and MMMMCMXCVIII to Arabic numerals.

How to Convert to Roman Numerals

The Roman numerals are represented
by the following letters:

  • I = 1
  • V = 5
  • X = 10
  • L = 50
  • C = 100
  • D = 500
  • M = 1000
  • If a numeral is followed by another numeral of lower denomination, the two are added together;
  • if it is preceded by one of lower denomination, the smaller numeral is subtracted from the greater.

Thus XI = 11 (X + I), but IX = 9 (X – I).

Other examples are XXC = 80, CXL = 140, XV = 15, XLVIII = 48.

Thousands from 1000 to 9000 are represented as: M, MM, MMM,MMMM, MMMMM, MMMMMM, MMMMMMM, MMMMMMMM, MMMMMMMMM.

Multiples of a thousand are also/alternatively indicated by a superior bar: thus, V̅ = 5 000, V̅I̅ = 6 000, V̅I̅I̅ = 7000, ... , X̅ = 10000, X̅X̅D̅ = 480 000, etc.

How to read a Roman Numeral

Break the number into Thousands, Hundreds, Tens and Units and write down each in turn.

Example: Convert 1989 to Roman Numerals.

Break 1989 into 1000, 900, 80 and 9, then do each conversion

  • 1000 = M
  • 900 = CM
  • 80 = LXXX
  • 9 = IX
  • So, 1989 = MCMLXXXIX

Roman to Arabic Numerals Chart Hundreds

C100One hundred
CC200Two hundred
CCC300Three hundred
CD400Four hundred
D500Five hundred
DC600Six hundred
DCC700Seven hundred
DCCC800Eight hundred
CM900Nine hundred

Roman to Arabic Numerals Chart - Thousands

M1000One thousand
MM2000Two thousand
MMM3000Three thousand
MMMMM 4000Four thousand
MMMMM 5000Five thousand
MMMMMMetc.

Roman to Arabic numerals from 1 to 100 by - Tens

X10
XX20
XXX30
XL40
L50
LX60
LXX70
LXXX80
XC90
C100

Disclaimer

While every effort is made to ensure the accuracy of the information provided on this website, we offer no warranties in relation to these informations.