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Math Calculators

Natural Log Calculator

Calculate the natural logarithm (ln), the logarithm base e, of any positive number.

ln(x)
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About the Natural Log Calculator

The natural logarithm is the logarithm to the base e (approximately 2.71828), Euler's number. It answers "to what power must e be raised to get this number?"

Formula: ln(x) = loge(x)

The natural log appears throughout calculus, continuous growth and decay models, and probability, because e arises naturally from continuous compounding.

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