Physics Calculators

Plug in your values below and get instant results for common physics formulas — no sign-up, no fuss.

Velocity

v = d / t

Find the average speed of an object from the distance it travels and the time it takes.

Distance (meters)

Time (seconds)

F = m × a

Newton’s second law — calculate the force needed to accelerate a given mass.

Mass (kg)

Acceleration (m/s²)

KE = ½ m v²

Calculate the energy of an object in motion from its mass and velocity.

Mass (kg)

Velocity (m/s)

ρ = m / V

Work out the density of a substance from its mass and volume.

Mass (kg)

Volume (m³)

W = F × d

Calculate the work done by a force moving an object over a distance.

Force (N)

Distance (m)

R = (v² sin 2θ) / g

Find the horizontal distance a projectile travels, given launch speed and angle.

Launch speed (m/s)

Launch angle (degrees)

Results are for general reference and use standard gravity g = 9.81 m/s² where relevant.