Physics Calculators
⚡Physics calculators for motion, force, energy, velocity, density, and scientific measurements to explore and solve real-world problems.
Kinematics
Velocity Calculator
Calculate velocity, displacement, and time using kinematic equations
Projectile Motion Calculator
Calculate range, max height, and flight time of a projectile from launch speed and angle.
Free Fall Calculator
Find the velocity, time, and distance of an object in free fall under gravity.
Acceleration Calculator
Calculate acceleration from change in velocity and time, or from force and mass.
Dynamics
Force Calculator
Calculate force, mass, and acceleration using Newton's second law of motion
Newton's Second Law Calculator
Solve F = ma for force, mass, or acceleration.
Momentum Calculator
Calculate momentum and impulse from mass and velocity.
Friction Calculator
Calculate the friction force from the normal force and coefficient of friction.
Centripetal Force Calculator
Calculate the centripetal force on an object moving in a circular path.
Torque Calculator
Calculate torque from force, lever arm length, and the angle between them.
Thermodynamics
Heat Transfer Calculator
Calculate heat transfer, specific heat capacity, mass, and temperature change using thermodynamic equations
Thermal Expansion Calculator
Calculate linear thermal expansion (change in length) from temperature change and coefficient.
Ideal Gas Law Calculator
Solve the ideal gas law PV = nRT for pressure, volume, moles, or temperature.
Electricity and Magnetism
Ohm's Law Calculator
Calculate voltage, current, and resistance using Ohm's law for electrical circuits
Voltage Divider Calculator
Calculate the output voltage of a two-resistor voltage divider.
Capacitor Calculator
Calculate capacitance, charge, energy, and series/parallel capacitor combinations.
Resistor Color Code Calculator
Decode 4, 5, and 6-band resistor color codes to resistance and tolerance.
Coulomb's Law Calculator
Calculate the electrostatic force between two point charges using Coulomb’s law.
Waves and Optics
Wavelength Calculator
Calculate wavelength, frequency, and wave speed for electromagnetic and mechanical waves
Snell's Law Calculator
Calculate the angle of refraction or refractive index using Snell’s law.
Lens Calculator
Calculate focal length, image distance, or magnification with the thin lens equation.
Fluid Mechanics
Modern Physics
Astronomy
Orbital Period Calculator
Calculate orbital period, semi-major axis, and central body mass using Kepler's third law
Escape Velocity Calculator
Calculate the escape velocity needed to leave the gravity of a planet or star.
Gravitational Force Calculator
Calculate the gravitational force between two masses using Newton’s law of gravitation.
Energy and Power
Power Output Calculator
Calculate power output, work done, and time using energy and power equations
Kinetic Energy Calculator
Calculate kinetic energy from mass and velocity.
Potential Energy Calculator
Calculate gravitational potential energy from mass, height, and gravity.
Work Calculator
Calculate mechanical work from force, distance, and the angle between them.