Examples for

Historical Numbers
Whether you're age 8 or age CVIII, Wolfram|Alpha's algorithmic understanding of historical number systems allows you to compute like the ancients. Use Wolfram|Alpha to convert commonly seen Roman numerals to modern decimal numbers or to translate decimal numbers to their Mayan, Greek or Babylonian equivalents.

Roman Numerals

Convert decimal numbers to and from Roman numerals.

Convert Roman numerals to standard number notation:

Convert a decimal number to Roman numerals:

Do computations with Roman numerals:

Do mixed-notation computations:

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Greek Numerals

Explore the representation of decimal numbers in ancient Greek numerals.

Convert a decimal number to Greek numerals:

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Mayan Numerals

Explore the representation of decimal numbers in ancient Mayan numerals.

Convert a decimal number to Mayan numerals:

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Babylonian Numerals

Can't count in cuneiform? Convert to and from Babylonian numerals.

Convert a decimal number to Babylonian numerals:

Convert from one historical numeral system to another:

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