Free natural logarithm calculator to calculate natural logarithm. Instant results in your browser — no signup.
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Primary answer and useful breakdowns.
ln(x)
2.995732
e^2.995732 ≈ 20.0000
log₁₀(x)
1.301030
Free natural logarithm calculator to calculate natural logarithm. Instant results in your browser — no signup. ln(x) is the inverse of e^x; ln(e) = 1.
ln(x) is the inverse of e^x; ln(e) = 1.
ln(20) ≈ 2.995732.
Euler's number ≈ 2.71828.