Physics Calculators

A complete directory of all our 104+ physics and engineering calculators. Browse categories below to find tools for electrical circuits, kinematics, thermodynamics, and more.

Physics Calculators

Electrical & Electronics

Ohms Law Calculator Solve V I and R Fast

Electric Field Calculator Compute Force Voltage and Charge

Voltage Drop Calculator How to Size Cable and Avoid Power Loss

Electricity Cost Calculator Estimate Monthly Power Bills

Amp Hour Calculator

Parallel Resistor Calculator Formula Examples FAQ

Resistance Calculator Find Electrical Resistance Fast

Electric Flux Calculator Compute PHIE

Amps to Watts Calculator

Watts to Amps Calculator

Angular Velocity Calculator Formula Units Examples

Angular Acceleration Calculator Formula Units Examples

Capacitance Calculator

Electric Potential Calculator Formula Examples Faqs

Average Speed Calculator Formula Examples How to Use It

Wave Speed Calculator Formula Examples and How to Use It

Average Velocity Calculator Formula Examples and How to Use It

Speed Distance Time Calculator Formula Units Examples

Gravitational Force Calculator Formula Examples FAQ

Beam Deflection Calculator Formulas Methods Examples

Constant of Proportionality Calculator Formula Examples FAQ

Dbm to Watts Calculator

Coulombs Law Calculator

Relative Humidity Calculator Formula Steps and Examples

Wire Size Calculator Choose The Right Cable

DC Wire Size Calculator Size Cables Correctly

Kinetic Energy Calculator Formula Units Examples

Volts to Joules Calculator Convert Voltage to Energy

Horsepower Calculator Convert Watts Torque Rpm to Hp

Potential Energy Calculator Formula Examples How to Use

Frictional Force Calculator Formula Examples

Torque Calculator Formula Units Examples

Momentum Calculator Formula Examples How to Use It

Power to Weight Ratio Calculator Formula Units Examples

Centripetal Force Calculator Formula Examples and How to Use It

Specific Heat Calculator Formula Units Practice Examples

Energy Cost Calculator Estimate Electricity Bill Fast

Watt Calculator How to Calculate Power W From Voltage and Current

Watt Hour Calculator Energy Estimate

Kinematics & Motion

Acceleration Calculator

Instantaneous Velocity Calculator Find Speed At A Single Moment

Free Fall Calculator Time Distance Velocity Units

Projectile Motion Calculator Range Height Time Velocity

Terminal Velocity Calculator How Fast An Object Falls in A Fluid

Time Dilation Calculator Relativistic Time

Displacement Calculator

Time of Flight Calculator Compute Travel Time Fast

Velocity Calculator How to Calculate Speed Velocity and Distance

Speed of Sound Calculator Air Temperature

Wavelength Calculator Find Wavelength From Frequency Or Speed

Escape Velocity Calculator

Quarter Mile Calculator Time Speed Distance

Arrow Speed Calculator Find Launch Speed From Distance and Time

Friction Calculator Calculate Force Coefficient Stopping Distance

Gear Ratio Calculator Output Speed Torque Rpm

Mechanics & Forces

Spring Constant Calculator How to Calculate K From Mass and Period

Tension Calculator Cable Rope Tension

Friction Loss Calculator Estimate Pipe Pressure Drop Fast

Force Calculator

Impulse Calculator Calculate Impulse Force Momentum Change

Resultant Force Calculator Find Net Force

Normal Force Calculator Force On A Surface

Change in Momentum Calculator Impulse Momentum

Buoyancy Calculator Upward Force

Density Calculator Calculate Density Mass Volume

Center of Mass Calculator

Thermodynamics & Heat

Enthalpy Calculator Calculate Heat of Reaction and Sensible Enthalpy

Water Viscosity Calculator Temperature Based

Heat Index Calculator How to Estimate Summer Heat Risk

Waves & Optics

Photon Energy Calculator Wavelength to Energy

Index of Refraction Calculator

Snells Law Calculator Find Refraction Angles

Wave Period Calculator

Angle of Refraction Calculator Snells Law