Physics Calculators Collection – Solve Any Physics Equation Instantly
Your ultimate hub for physics calculators and equation solvers online. Instantly analyze, calculate, and check formulas for all major topics—mechanics, waves, fluids, energy, pressure, motion, rotational dynamics, and electromagnetism. Perfect for students, engineers, and teachers.
Motion, Kinematics & Dynamics
Acceleration Calculator
Find acceleration from speed, distance, or force – equation tool for all problems.
Velocity Calculator
Calculate average & instantaneous velocity, direction & SI units in physics.
Displacement & Distance Calculator
Calculate position change, path length, initial/final positions—core kinematics.
Free Fall Velocity Calculator
Instant equation for falling body velocity under gravity, with/without air resistance.
Free Fall Height Calculator
Find fall distance from velocity or time—classic mechanics for physics.
Period of Pendulum Calculator
Pendulum period, length, and gravity relationship—calculate with ease.
Length Contraction Calculator
Relativistic contraction equations for high-speed physics in one click.
Magnitude of Acceleration Calculator
Calculate size/component of acceleration vector from velocity/time data.
Knudsen Number Calculator
Key flow regime number in gas dynamics, rarefied flow, and vacuum science.
Mach Number Calculator
Supersonic, subsonic, and transonic speed analysis (speed of sound ratio).
Froude Number Calculator
Hydraulic, ship and open-channel flow velocity/scale ratio tool.
Forces, Energy & Work
Force Calculator
F=ma and more: Calculate net, normal, friction, and gravitational force types.
Normal Force Calculator
Solve for supporting force—horizontal and inclined surfaces, detailed examples.
Friction Calculator
Friction force, coefficient (static/kinetic), and real-life applications solved.
Gravitational Force Calculator
Newton’s law of gravity equation, mass, separation, universal constant.
Momentum Calculator
p=mv, impulse, conservation, elastic/inelastic collision mechanics.
Impulse & Momentum Calculator
Impulse delivered, time/force, connection with Δp and exam scenarios.
Work Calculator
Work done by a force, power and energy transfer in mechanical physics.
Kinetic Energy Calculator
Find KE for objects in motion with mass and speed (½mv²) – all SI units.
Potential Energy Calculator
Gravitational, elastic, and mechanical potential energy solved quickly.
Rotational Kinetic Energy Calculator
Energy in spinning bodies, angular speed and moment of inertia used.
Newton’s Second Law Calculator
Calculate acceleration, mass, and force using F = ma and more details.
Fluids, Pressure & Buoyancy
Bernoulli Flow Rate Calculator
Bernoulli equation solutions: Pressure, velocity, and energy for fluids.
Bernoulli Mass Flow Calculator
Find mass flow using Bernoulli’s principles and continuity equations.
Buoyancy Force Calculator
Calculate buoyant force for objects in various liquids—Archimedes’ law.
Buoyancy Mass Calculator
Relate object and fluid mass for floating/sinking prediction.
Density Calculator
Mass/volume density of objects, fluids, and gas for lab and classroom.
Drag Equation Calculator
Find drag force in moving objects in air, fluid—real engineering tool.
Pipe Flow Rate Calculator
Calculate volumetric flow in pipes—important for hydraulics and civil Eng.
Hydraulic Radius (Pipe)
Engineers’ calculator for determining pipe sections in open channel flow.
Hydraulic Depth Calculator
Key tool for river engineering, flood analysis and open channel design.
Hydraulic Pressure Calculator
Find liquid pressure in hydraulic systems—everyday physics and engineering.
Hydrostatic Pressure Calculator
Pressure for submerged objects, dams, and tanks—solved step by step.
Waves, Relativity & Quantum Tools
Angular Velocity Calculator
Compute angular velocity for rotating objects, radians/second, period, frequency.
Rotational Kinetic Energy
Energy from rotation (½Iω²), used in machinery & astrophysics.
Moment of Inertia Calculator
Key to calculating torque, stability, angular acceleration for various shapes.
E = mc² Calculator
Relativity: Energy-mass equivalence, atom bombs, stars—you name it.
Poisson’s Ratio Calculator
Elastic deformation, stretch/compression—important in engineering statics.
Strain Calculator
Compute engineering strain (deformation), with % change and units.
Stress Calculator
Stress formula, real-world force per area for structures/materials.
Reduced Mass Calculator
Physics/chemistry: effective mass for orbital, molecular, atomic systems.
Optics, Refraction & Photonics
Absolute Index Of Refraction
Find absolute index for any medium—key optics and physics concept.
Relative Index of Refraction
Refraction between two substances—Snell’s Law solver for students.
Malus Law Calculator
Polarized light, angle, emergent intensity computed for physics projects.
Brewster's Angle Calculator
Find polarization angle for light in any medium. Fast and accurate!
Angular Resolution Calculator
Telescope, camera or optics—find minimum angle separation, Rayleigh criterion.
Aperture Area Calculator
Optics: lens, camera, and telescope aperture calculation tool.
Lightning Distance Calculator
Estimate lightning strike distance from thunder-sound delay & physical law.