Tools

Physics Calculators

Twenty instant calculators across mechanics, waves, thermodynamics, electromagnetism and gravitation. Enter what you know, solve for what you don't, and see every formula used.

Kinematics

Projectile Motion Calculator

Find range, max height, time of flight and final speed for any launch.

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Energy

Kinetic Energy Calculator

Compute the kinetic energy and momentum of a moving object.

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Electricity

Ohm's Law Calculator

Find voltage and power from current and resistance.

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Kinematics

Free Fall Calculator

Compute fall time and impact speed for an object dropped from a height.

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Mechanics

Newton's Second Law Calculator

Find the net force from mass and acceleration, plus the weight on Earth.

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Oscillations

Pendulum Period Calculator

Find the period and frequency of a simple pendulum.

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Waves

Wave Speed Calculator

Relate frequency, wavelength, speed and period of a wave.

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Thermodynamics

Ideal Gas Law Calculator

Find the number of moles of gas from pressure, volume and temperature.

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Energy

Gravitational Potential Energy Calculator

Compute the stored energy of a raised mass in a gravitational field.

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Mechanics

Momentum Calculator

Find the momentum and kinetic energy of a moving mass.

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Mechanics

Circular Motion Calculator

Find centripetal acceleration and force for an object moving in a circle.

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Kinematics

SUVAT Equations Calculator

Find final velocity and displacement from the equations of motion.

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Mechanics

Hooke's Law Calculator

Find the restoring force and stored energy of a stretched spring.

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Waves

Doppler Effect Calculator

Find the observed frequency from a moving source as it approaches and recedes.

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Optics

Snell's Law Calculator

Find the refraction angle and critical angle when light crosses a boundary.

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Mechanics

Torque Calculator

Find the turning effect of a force about a pivot.

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Fluids

Buoyancy Calculator

Find the upward buoyant force on a submerged object.

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Energy

Work and Power Calculator

Find the work done by a force and the power delivered.

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Gravitation

Escape Velocity Calculator

Find the speed needed to escape a planet's gravity.

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Thermodynamics

Thermal Expansion Calculator

Find how much a material lengthens when heated.

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