Physics Calculators

Calculate speed, distance or time from distance-time motion values with common speed units.

Calculate average velocity from displacement and time, including direction or 2D coordinate components.

Calculate acceleration, final velocity and constant-acceleration distance from motion inputs.

Calculate force, mass or acceleration using Newton's second law with SI and customary units.

Calculate physical weight force from mass and gravitational acceleration, or recover mass from weight.

Calculate mechanical work from force, displacement and angle, with joule and energy-unit outputs.

Calculate physics energy from work, power-time, or heat-energy relationships with common units.

Calculate power from work and time, energy and time, or force and velocity with common power units.

Calculate linear momentum from mass and velocity, or rearrange for velocity.

Calculate impulse from force and time, change in momentum, or average force.

Calculate kinetic energy from mass and speed, or rearrange the formula for speed.

Calculate gravitational or spring potential energy from mass, gravity, height, spring constant and displacement.

Estimate friction force from normal force and coefficient of friction.

Calculate pressure from force and area.

Calculate density from mass and volume.

Estimate buoyant force from displaced fluid.

Calculate frequency, period and cycle rate.

Calculate wavelength from wave speed and frequency.

Calculate wave speed from frequency and wavelength.

Estimate sound intensity and decibel relationships.

Solve thin-lens object, image and focal length relationships.

Solve mirror object, image and focal length relationships.

Calculate refractive index from light speed or angle data.

Calculate refraction angles from Snell's law.

Calculate voltage, current or resistance.

Calculate electrical power relationships.

Calculate electrostatic force between charges.

Calculate capacitance and charge-voltage relationships.

Calculate magnetic force for charges or current segments.

Calculate photon energy from frequency or wavelength.

Calculate radioactive decay estimates.

Calculate half-life and remaining quantity relationships.

Calculate escape velocity from mass and radius.

Calculate circular orbital velocity.

Estimate blackbody radiation relationships.