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Natural Logarithm Calculator

Math
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Calculates the natural logarithm (log base e) of a number.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Enter a number: in the units shown.

Step 2

Read Natural Logarithm (ln) in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

e (Euler's number)

Enter a number:: 2.71828

Natural Logarithm (ln): 0.9999993273

1

Enter a number:: 1

Natural Logarithm (ln): 0

10

Enter a number:: 10

Natural Logarithm (ln): 2.302585093

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