Skip to content
Convertto

Exponent, Root & Logarithm Calculator

Calculate powers, nth roots, logarithms in any base, and exponentials.

To calculate exponents, roots and logarithms, choose the operation and enter your values. Powers, nth roots, logarithms in any base, natural logs and exponentials are all supported, and each result shows the working so you can check it.

Runs in your browser
Privacy
Runs entirely in your browser — nothing is uploaded
Cost
Free, unlimited, no sign-up

Frequently asked questions

Why does the calculator reject log of a negative number?

There is no real number you can raise a positive base to that gives a negative result. Logarithms of negative numbers exist only in the complex plane, which this calculator does not cover.

How to use the exponent, root & logarithm calculator

  1. 1Choose the calculate.
  2. 2Set the value (a).
  3. 3Set the second value (b).
  4. 4The result appears immediately — copy or download it.

Embed this tool

Put the working exponent, root & logarithm calculator on your own site. It runs in your visitors' browsers exactly as it does here — free, no account, nothing uploaded.

Share this tool

Related tools

Fraction CalculatorAdd, subtract, multiply and divide fractions, with the result simplified.GCD & LCM CalculatorFind the greatest common divisor and lowest common multiple of any set of numbers.Percentage CalculatorWork out percentages, percentage change and reverse percentages with the working shown.Permutation & Combination CalculatorCalculate nPr, nCr and factorials for counting and probability problems.Prime Number Checker & FactoriserCheck whether a number is prime and see its full prime factorisation.Quadratic Equation SolverSolve ax² + bx + c = 0 with real or complex roots and see the discriminant.

Last updated

More calculators