Here is a chart of what each Roman Numeral stands for. The system is based on seven different symbols. Below are the numbers for 1-100:
Here is a tool to convert from Roman Numerals to numbers, or vice versa at Roman-numerals.org.
Ancient Romans used a special method of showing numbers. Romans Numerals are based on the following symbols:
Roman Numerals via kwout
Forming Numbers - The Rules:
When a symbol appears after a larger symbol it is added
Example: VI = V + I = 5 + 1 = 6
But if the symbol appears before a larger symbol it is subtracted
Example: IX = X - I = 10 - 1 = 9
To Remember: After Larger is Added
Don't use the same symbol more than three times in a row (but IIII is sometimes used for 4, particularly on clocks)
Numbers greater than 1,000 are formed by placing a dash over the symbol, meaning "times 1,000", but these are not commonly used:
Roman Numerals via kwout
Tip! What’s 51 + 12? Easy, right? How about LI + XII? Not so easy…or is it? Keep on reading to learn all about adding and subtracting Roman style at Quickanddirtytips.com.