Physics Calculators
Free online physics calculators for mechanics, electricity, and waves. Enter values and get instant results with formulas.
Velocity Calculator
Calculate velocity from distance and time.
Speed Calculator
Calculate speed, distance, or time.
Acceleration Calculator
Calculate acceleration from velocity and time.
Force Calculator (F=ma)
Calculate force using Newton's second law.
Kinetic Energy Calculator
Calculate kinetic energy (½mv²).
Potential Energy Calculator
Calculate gravitational potential energy (mgh).
Work Calculator
Calculate work done (W = F × d).
Power Calculator
Calculate power (P = W/t).
Momentum Calculator
Calculate momentum (p = mv).
Impulse Calculator
Calculate impulse (J = F × t).
Friction Calculator
Calculate friction force from normal force and coefficient.
Torque Calculator
Calculate torque (τ = F × r).
Centripetal Force Calculator
Calculate centripetal force for circular motion.
Projectile Motion Calculator
Calculate range, height, and time of flight.
Free Fall Calculator
Calculate distance and velocity in free fall.
Density Calculator
Calculate density from mass and volume.
Specific Heat Calculator
Calculate heat energy (Q = mcΔT).
Ideal Gas Law Calculator
Solve PV = nRT for any variable.
Ohm's Law Calculator
Calculate voltage, current, or resistance.
Voltage Calculator
Calculate voltage from current and resistance.
Current Calculator
Calculate current from voltage and resistance.
Resistance Calculator
Calculate resistance from voltage and current.
Electrical Power Calculator
Calculate electrical power (P = VI).
Frequency Calculator
Calculate frequency from wavelength and speed.
Wavelength Calculator
Calculate wavelength from frequency and speed.
Wave Speed Calculator
Calculate wave speed from frequency and wavelength.
Distance Calculator
Calculate distance from speed and time.
Mechanical Energy Calculator
Calculate total mechanical energy (KE + PE).
Normal Force Calculator
Calculate normal force on flat or inclined surfaces.
Angular Velocity Calculator
Calculate angular velocity from RPM or linear velocity.
Angular Acceleration Calculator
Calculate angular acceleration from change in angular velocity.
Electrical Energy Calculator
Calculate electrical energy consumed (kWh).
Series Resistance Calculator
Calculate total resistance in series.
Parallel Resistance Calculator
Calculate total resistance in parallel.
Capacitance Calculator
Calculate capacitance from charge and voltage.
Charge Calculator
Calculate electric charge (Q = I × t).
Coulomb's Law Calculator
Calculate electrostatic force between charges.
Period Calculator
Calculate wave period from frequency or pendulum length.
Heat Calculator
Calculate heat energy transferred (Q = mcΔT).
Thermal Expansion Calculator
Calculate length change due to temperature change.
Pressure Calculator
Calculate pressure from force and area (P = F/A).