Euler's Number Reference
Get the value of Euler's number (e) rounded to any number of decimal places.
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Result
e
0
Formula used
e (Euler's number) is the base of the natural logarithm, approximately 2.71828182845905.
Example: e to 5 decimal places = 2.71828.
How to use this calculator
- Enter Decimal places.
- Press Calculate to see your result instantly.
FAQ
Frequently asked questions
What is Euler's number used for?
It's the base of natural logarithms and exponential growth/decay formulas, including continuous compound interest.
Why is 15 the maximum number of decimal places?
Standard double-precision numbers only reliably store about 15-17 significant digits.
Is e a repeating decimal?
No — like pi, e is irrational and its digits never repeat.
Where does the value of e come from?
It's read from JavaScript's built-in Math.E constant.