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From your first fraction to your next physics paper. Find a calculator, see the working and get back to the question.
Try sin(30), √(81) or 15% × 240.
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14 calculators
Scientific calculator
Calculate expressions, solve equations and explore calculus.
Graphing calculator
Plot a function, inspect values and save your graph.
Fractions calculator
Add, subtract, multiply and divide exact fractions.
Matrices & vectors
Work with 2 × 2 and 3 × 3 matrices and three-dimensional vectors.
Geometry calculator
Find area, perimeter, volume and surface area.
Statistics & probability
Summarise data and calculate combinations and permutations.
Unit converter
Convert length, mass, temperature and eight more unit groups.
Motion calculator
Solve constant-acceleration questions from your known quantities.
Ohm’s law calculator
Find voltage, current, resistance and power from two values.
Molarity & dilution
Find solution concentration and the solvent needed for dilution.
Heat & ideal gases
Calculate heat transfer or solve an ideal-gas quantity.
Weighted marks calculator
Combine assessment marks using your own weightings.
NBT score planner
Compare practice scores with targets you choose.
APS estimator
Estimate an admissions score with a transparent seven-level scale.
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Use the answer. Understand the method.
Each tool includes an example, the relevant formula and clear units. Use it to check your own working, then practise with a real paper.
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