Physics calculators
Solve constant-acceleration problems, model projectile motion and analyse resistor circuits. Each calculator shows the equation it used and every substitution.
3 calculators
DC Circuit Analysis Calculator
Equivalent resistance, current, voltage and power for every resistor in a series–parallel circuit, plus Ohm's law.
Kinematics (SUVAT) Calculator
Enter any three of s, u, v, a and t to find the other two, with the SUVAT equation used and every substitution shown.
Projectile Motion Calculator
Range, maximum height, flight time and impact velocity of a projectile, with a to-scale trajectory graph and steps.
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About these calculators
The physics calculators handle units for you and keep track of direction, so signs are never lost. Each one lists the idealisations it relies on, such as ignoring air resistance or treating wires as having no resistance.