Science Calculators
Physics and chemistry calculators — Ohm's law, molarity, projectile motion, and more — for students and hobbyists.
- Ohm's Law Calculator
Calculate voltage, current, or resistance using Ohm's law. Free, instant.
- Molarity Calculator
Calculate molarity from solute mass, molar mass, and solution volume. Free, instant.
- Projectile Motion
Calculate range, max height, and time of flight for a projectile. Free, instant.
- Density Calculator
Calculate density from mass and volume. Free, instant.
- Free Fall Calculator
Calculate fall time and impact velocity from a given height. Free, instant.
- pH Calculator
Calculate pH from hydrogen ion concentration. Free, instant.
- Kinetic Energy Calculator
Calculate kinetic energy from mass and velocity. Free, instant.
- Specific Heat Calculator
Calculate heat energy from mass, specific heat, and temperature change. Free, instant.
- Ideal Gas Law
Solve for pressure, volume, moles, or temperature using PV = nRT. Free, instant.
- Pendulum Period
Calculate a simple pendulum's period and frequency from its length. Free, instant.
- Half-Life Calculator
Calculate remaining quantity after radioactive or exponential decay. Free, instant.
- Dilution Calculator
Solve for stock volume, final volume, or concentration using C1V1 = C2V2. Free, instant.
- Escape Velocity
Calculate the escape velocity for Earth, the Moon, planets, or a custom body. Free, instant.
- Buoyancy Calculator
Calculate buoyant force and whether an object floats using Archimedes' principle. Free, instant.
- Snell's Law
Calculate the refraction angle when light passes between two materials. Free, instant.
- Wavelength & Frequency
Convert between wavelength and frequency for electromagnetic waves using c = fλ. Free, instant.
- Hooke's Law
Calculate spring force and elastic potential energy using Hooke's Law. Free, instant.
- Torque Calculator
Calculate rotational torque from force, lever arm length, and angle. Free, instant.
- Centripetal Force
Calculate the centripetal force and acceleration for circular motion. Free, instant.
- F = ma Calculator
Solve for force, mass, or acceleration using Newton's second law, F = ma. Free, instant.
- Gravitational Force
Calculate the gravitational force between two masses using Newton's law of gravitation. Free, instant.
- Friction Force
Calculate normal force and friction force for an object on flat ground or an incline. Free, instant.
- Molar Mass Calculator
Calculate the molar mass of a chemical formula from its element composition. Free, instant.
- Photon Energy
Calculate a photon's energy in joules and electron volts from its wavelength. Free, instant.