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Probability Calculator

Calculate simple probability, joint probability, or complements.

Preparing Probability Calculator
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Input
Basic favorable-over-total, independent events, or complement probability. You will see the result first and the step-by-step solution below.
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Step by Step Calculation

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Calculate first and the full working will appear below automatically.

How to use Probability Calculator

Enter the values you know, tap Calculate to see the result first, then review the optional step-by-step solution below.

What this calculator is for

Basic favorable-over-total, independent events, or complement probability.

Tips

  • Use clean numbers and symbols so the solver reads them correctly.
  • For lists, separate numbers with commas, spaces, or new lines.
  • For matrices, put each row on a new line.

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