Physics tools
Physics calculators that show each step, standard derivations, constants in every unit, and dimensional formulas.
- Equations of motion calculatorAny three of u, v, a, t, s gives the other two.
- Projectile motion calculatorRange, max height and time of flight, with the path drawn.
- Mirror and lens calculatorImage distance, magnification and nature, with the sign convention.
- Resistors in series and parallelEquivalent resistance, plus current and power in each.
- Moment of inertiaRing, disc, rod, sphere, cylinder and more, with derivations.
- Field formulasElectric and magnetic field of a wire, loop, ring, sheet, sphere and more, derived.
- Bohr model calculatorRadius, energy and speed of the electron in the nth orbit.
- Hydrogen spectrum calculatorWavelength, energy and series of any spectral line.
- de Broglie wavelength calculatorλ of an electron, proton or any mass from voltage, energy or speed.
- Half-life calculatorAmount left, time or half-life for decay and first-order reactions.
- Significant figures calculatorCount and round significant figures, with the rules.
- Unit convertereV to joule, atm to pascal, km/h to m/s and more, with where each factor comes from.
- Physical constantsValues and units of the constants used in physics and chemistry.
- Dimensional formulasDimensions and SI units of 57 physical quantities.
- Physics formula sheetEvery important formula, chapter by chapter, searchable.
Pages students open most
Dimensional formula of forceDimensional formula of Planck's constant hValue of Planck's constant (h)Value of gas constant (R)Electron volt to joule converterMoment of inertia of a uniform disc about its central axisMoment of inertia of a solid sphere about a diameterElectric field due to a charged ring on its axisMagnetic field due to a long solenoid