Net Force Calculator

Calculate net force magnitude and direction from multiple force vectors. Free physics calculator with component breakdown and unit conversions.
Normal Force Calculator

Calculate normal force for horizontal, inclined, external force, and elevator scenarios. Free physics calculator with multiple unit support.
Newton’s Third Law Calculator

Demonstrate action-reaction force pairs with equal and opposite forces. Free physics calculator for mechanics and Newton’s laws.
Newton’s Second Law Calculator

Solve for force, mass, or acceleration using Newton’s second law. Free physics calculator with unit conversions and instant results.
kg to Newtons Calculator

Convert kilograms to newtons instantly using F = m·g. Free online mass-to-weight force calculator with gravity presets for Earth, Moon, Mars, and Jupiter.
Hooke’s Law Calculator

Calculate spring force, spring constant, or displacement using Hooke’s law. Free physics calculator for mechanics, engineering, and education.
Gravitational Force Calculator

Calculate the gravitational force between two masses using Newton’s law. Free physics calculator for astronomy, education, and engineering.
Force Calculator

Calculate force using four methods: mass & acceleration, work & distance, impulse & time, or spring force.
Car Crash Calculator

Calculate impact force, deceleration, g‑force, and stopping time for vehicle collisions. Free physics calculator for safety analysis and engineering.
Angle of Banking Calculator

Calculate the ideal banking angle for vehicle curves with or without friction. Free physics calculator for road design, racing, and engineering.