Physics
12 tools available
Force, energy, momentum, pressure, gas laws, and physics equation solvers.
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Force Calculator
Calculate force, mass, or acceleration using Newton's Second Law (F = ma). Also find weight from mass with F = mg. Supports N, kN, lbf, and g-force units.
Velocity Calculator
Calculate velocity, distance, or time using v = d/t. Also solve v = v₀ + at for kinematics. Convert between m/s, km/h, mph, knots, and ft/s.
Acceleration Calculator
Calculate acceleration from velocity change and time, or from force and mass (a = F/m). Supports m/s², g-force, and ft/s² with common accelerations reference.
Kinetic Energy Calculator
Calculate kinetic energy, mass, or velocity using KE = 1/2 mv². Convert between J, kJ, kWh, and calories. Includes real-world examples.
Momentum Calculator
Calculate momentum, mass, or velocity using p = mv. Includes impulse (J = F times delta-t) and elastic/inelastic collision solvers with step-by-step solutions.
Pressure Calculator
Calculate pressure, force, or area using P = F/A. Includes hydrostatic pressure (P = pgh). Convert between Pa, atm, psi, bar, mmHg, and torr.
Density Calculator
Calculate density, mass, or volume using d = m/V. Supports kg/m³, g/cm³, g/mL, and lb/ft³ with a reference table of common material densities.
Ideal Gas Law Calculator
Solve PV = nRT for pressure, volume, moles, or temperature. Multiple units with automatic Kelvin conversion and step-by-step solutions.
Wavelength Calculator
Calculate wavelength, frequency, or wave speed using lambda = v/f. Speed of light preset for EM waves. Shows period, wave number, and EM spectrum reference.
E=mc² Calculator
Convert between mass and energy using Einstein's E = mc². See results in J, kWh, eV, and more. Includes real-world comparisons and famous examples.
Hooke's Law Calculator
Calculate spring force, spring constant, or displacement using Hooke's Law (F = -kx). Includes elastic potential energy and visual spring diagram.
Radioactive Half-Life Calculator
Calculate radioactive decay using the half-life formula. Find remaining amount, time to decay, or half-life. Includes decay curve chart and isotope reference.