Physics calculators

Kinematics, dynamics, and classical-physics shortcuts.

Solve the common physics textbook calculations — velocity, acceleration, force, and energy — with units correctly tracked end to end.

Calculators
372
Topics: All Mechanics (114) Electricity (48)
372 results
Physics / Mechanics

Orbital Velocity Calculator

Compute the circular orbital velocity at a given orbital radius around a central mass, using v = √(GM / r) with G = 6.67...

basic
8,268 4.9 1 min
Physics / Mechanics

Time Dilation Calculator

Compute the dilated time observed in a stationary frame for a moving clock, given the proper time and the speed as a fra...

basic
1,855 4.2 1 min
Physics

Roche Limit Calculator

Compute the Roche limit (rigid-body approximation) — the distance at which a satellite will be torn apart by tidal force...

basic
17,680 5.0 1 min
Physics / Mechanics

Pendulum Period Calculator

Compute the period and frequency of a simple (small-angle) pendulum from its length and the local acceleration due to gr...

basic
5,227 4.0 1 min
Physics

Drake Equation Calculator

Compute the Drake equation: N = R* · f_p · n_e · f_l · f_i · f_c · L. Each factor represents a successive filter from "s...

basic
18,195 4.1 1 min
Physics / Mechanics

Doppler Effect Calculator

Compute the frequency observed by a stationary observer when a source moves at velocity v_s, using the classical Doppler...

basic
4,265 4.5 1 min
Physics / Mechanics

Angular Momentum Calculator

Compute the angular momentum of a rigid body using L = I · ω, plus the angular-momentum equivalent for a point mass movi...

basic
13,693 4.2 1 min
Physics / Mechanics

Snell's Law Calculator

Compute the angle of refraction when light passes from a medium of refractive index n₁ into a medium of refractive index...

basic
6,162 4.2 1 min
Physics / Mechanics

Photon Energy Calculator

Compute the energy of a photon from either its frequency or its wavelength, using E = h · f = h · c / λ. Reports both th...

basic
17,990 4.7 1 min