Physics calculators
25 free physics tools, each with the formula and step-by-step working.
- Acceleration CalculatorAcceleration from speed change and time.
- Angular Acceleration Calculatorα from change in angular velocity over time.
- Centripetal Force CalculatorCentripetal force and acceleration in circular motion.
- De Broglie Wavelength CalculatorMatter wavelength from mass and velocity.
- Density CalculatorDensity, mass or volume from the other two.
- Doppler Effect CalculatorObserved frequency shift from relative motion.
- Escape Velocity CalculatorEscape velocity from a planet or moon's mass and radius.
- Force CalculatorNewton's second law: F = ma.
- Free Fall Time CalculatorFall time and impact speed from height.
- Impulse CalculatorImpulse from force and time, or from momentum change.
- Kepler's Third Law CalculatorOrbital period from semi-major axis, or the reverse.
- Kinetic Energy CalculatorEnergy of a moving object, and stopping distance.
- Kinetic Friction CalculatorFriction force and deceleration on a surface.
- Mechanical Power CalculatorPower from work, force and speed, or torque and RPM.
- Momentum Change CalculatorMomentum and change in momentum of a mass.
- Pendulum Period CalculatorPeriod of a simple pendulum from its length.
- Projectile Motion Range CalculatorRange, height and flight time of a projectile.
- Snell's Law Refraction CalculatorAngle of refraction between two media.
- Sound Intensity Decibel CalculatorSound level in decibels from intensity or distance.
- Spring Force Constant CalculatorSpring force and stored energy from Hooke's law.
- Thin Lens Equation CalculatorImage distance and magnification for a lens or mirror.
- Torque CalculatorTorque from force and lever arm, with unit conversion.
- Torque CalculatorTorque from force and lever arm length.
- Wavelength Frequency CalculatorConvert between wavelength, frequency and wave speed.
- Work-Energy Theorem CalculatorWork done and kinetic energy change.
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