How to choose the right physics calculators
Explore mechanics with calculators for acceleration, force, velocity, pressure, power, kinetic energy and gravitational potential energy. Start with the quantities you know: a change in velocity and time can give average acceleration, while mass and acceleration can give net force.
Before you use a tool
- Choose the correct unit for each input and compare the output with a rough estimate.
- Velocity and acceleration have direction; choose a consistent positive direction for signed values.
- Check each formula's assumptions: for example, near-surface gravitational potential energy uses a reference height and approximately constant gravity.
- Calculator results do not replace measured data or professional engineering review.
A practical workflow
Write down the known quantities and their units. Select the calculator for the relationship you need, enter the values, and check whether the result's sign, unit and magnitude fit the situation.
Choose a calculator by what you know
For a change in velocity over a known time, start with the acceleration calculator. Combine mass and acceleration in the force calculator to find net force, or explore distance and time with the velocity calculator.
To compare energy in a moving object with energy associated with height, see the kinetic energy calculator and potential energy calculator. Use the pressure calculator for force over area and the power calculator for energy or work over time.