Free Physics Calculators

Explore the laws of nature with our free physics calculators. Calculate force, energy, velocity, electric circuits, heat transfer, wave properties, and more — ideal for students, engineers, and science enthusiasts.

Mechanics

Force, motion, energy, work, power, and momentum calculators.

Electromagnetism

Circuit, capacitor, resistor, magnetic field, and electromagnetic wave calculators.

Fluid Mechanics

Pressure, flow rate, buoyancy, viscosity, and hydraulic calculators.

Thermodynamics

Heat transfer, entropy, thermal expansion, and calorimetry calculators.

Optics

Lens, mirror, refraction, diffraction, and light intensity calculators.

Waves & Sound

Frequency, wavelength, Doppler effect, and acoustic calculators.

Atmospheric

Atmospheric pressure, wind chill, and weather-related physics calculators.

Calculators coming soon.

Astronomy

Orbital mechanics, escape velocity, stellar luminosity, and planetary calculators.

Rotational

Torque, angular velocity, moment of inertia, and centripetal force calculators.

Calculators coming soon.

Nuclear

Radioactive decay, half-life, binding energy, and nuclear reaction calculators.

Relativity

Time dilation, length contraction, mass-energy equivalence, and relativistic calculators.

Calculators coming soon.

General Physics

Dimensional analysis, unit conversion, and general physics reference calculators.