This little website shows you the constant symbol and, where applicable, the numerical value of a mathematical or physical constant.

Just choose a constant:

Here is a random symbol:

Euler's Number

Euler's Number can be represented by the symbol:

Its value is:

2.71828…

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Mathematical Constants

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If you don't see a constant or category that you want, please take a moment to let us know what you are looking for.

We're always adding new constants and symbols to the database, and would love to hear your suggestions. What are we missing?