Math Calculators
Logarithm Calculator
Calculate logarithms with any base, including natural and common logs.
What is the Logarithm Calculator & How does it work?
A logarithm is the inverse operation to exponentiation. It answers the question: ‘To what power must a number be raised to get another number?’ For example, log2(8) = 3 because 23 = 8.The natural logarithm, denoted as ln(x), uses the mathematical constant e (approximately 2.71828) as its base. The common logarithm, or log10(x), uses 10 as its base.
\log_b(x) = y \quad \text{if} \quad b^y = x
b = base, x = argument, y = logarithm
Parameters
e.g., 2, 10, e
Logarithm Result
—
Inverse (Antilog) Result
—
Results are for informational purposes only and do not constitute professional advice.