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Math calculators that show every step

Get the answer, then see the steps. Calculators for percentages, fractions, algebra, geometry, statistics and number bases, with the working written out for the numbers you type.

x² − 3x + 2 = 0

  1. Read off the coefficients: a = 1, b = −3, c = 2
  2. Discriminant: b² − 4ac = 9 − 8 = 1
  3. Formula: x = (3 ± 1) ÷ 2

x = 2 or x = 1

Worked by the quadratic formula calculator. Type your own a, b and c and it shows the same steps for your numbers.

17 step-by-step calculators for percentages, fractions, algebra and statistics

Numbered working for the exact numbers you type, the formula, a worked example and a practice question. The inputs stay in the page address, so a teacher can share an example as a link.

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How CalcWorld's math calculators work out the steps

The step-by-step calculators share one math engine that produces the answer and the working from the same numbers, and it is covered by unit tests. Fractions stay exact, rounding is only applied for display, and where a method has more than one convention (quartiles, percentiles, sample or population) the page says which one it uses. Read more on how we calculate.