Physics Calculators
Last updated: October 2026
Kinetic and Potential Energy Calculator
Compute total mechanical energy E = ½mv² + mgh from an object's mass, velocity, and height — combining kinetic energy from motion and gravitational potential energy from elevation.
Force Calculator (Newton's Second Law)
Calculate the net force on an object from its mass and acceleration with Newton's second law, F = m × a, in newtons.
Gravitational Force Calculator
Calculates the gravitational force between two masses separated by a given distance, using Newton's law of universal gravitation.
Fluid Flow Calculator
Computes volumetric flow rate, dynamic pressure, and total Bernoulli head for fluid moving through a pipe.
Electrical Power Calculator
Calculates electrical power in watts from voltage and current using P = V × I.
Capacitor Discharge Calculator
Calculates the voltage, current, or RC time constant as a capacitor discharges through a resistor over time.
Spring Oscillation Calculator
Find the period, frequency, maximum velocity, or restoring force of a mass-spring system.
Thin Lens Calculator
Compute image distance, magnification, or lens power for converging and diverging thin lenses.
Escape Velocity Calculator
Calculate the escape velocity of a planet, moon or star, v = √(2GM/r), from its mass in kilograms and the distance from its center in meters.
Ohm's Law Solver (V = IR)
Solve Ohm's law for voltage, current or resistance: pick the unknown, enter the other two values and get V = I × R rearranged for you.
Density Calculator
Calculate the density of a material from its mass and volume, in g/cm³ (the same as g/mL; multiply by 1,000 for kg/m³).