Roman to Arabic Calculator
Roman to Arabic Calculator
Convert from Roman to Arabic Numerals. Here is the answer to the question: Roman to Arabic Converter-Calculator or C in Arabic Numerals.
Use the Roman Numerals converter above 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 a lower denominations, 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
| C | 100 | One hundred |
| CC | 200 | Two hundred |
| CCC | 300 | Three hundred |
| CD | 400 | Four hundred |
| D | 500 | Five hundred |
| DC | 600 | Six hundred |
| DCC | 700 | Seven hundred |
| DCCC | 800 | Eight hundred |
| CM | 900 | Nine hundred |
Roman to Arabic Numerals Chart - Thousands
| M | 1000 | One thousand |
| MM | 2000 | Two thousand |
| MMM | 3000 | Three thousand |
| MMMMM | 4000 | Four thousand |
| MMMMM | 5000 | Five thousand |
| MMMMMM | etc. |
Roman to Arabic numerals from 1 to 100 by - Tens
| X | 10 |
| XX | 20 |
| XXX | 30 |
| XL | 40 |
| L | 50 |
| LX | 60 |
| LXX | 70 |
| LXXX | 80 |
| XC | 90 |
| C | 100 |