Physics and chemistry calculators for classroom formulas, lab checks, unit-aware substitutions, and reverse-solving common science equations. Each tool is built for clear inputs, useful defaults, validation, and steps when the calculation needs context.
Solve the missing variable, inspect the substitution, and keep lab units honest.
Force Calculator
Solve Newton's second law F = ma for force, mass, or acceleration with step-by-step substitution.
Kinetic Energy Calculator
Calculate kinetic energy, mass, or velocity from KE = 1/2mv^2 with square-root reverse solving.
Potential Energy Calculator
Solve gravitational potential energy PE = mgh for energy, mass, gravity, or height.
Momentum Calculator
Calculate momentum, mass, or velocity using p = mv with clear physics steps.
Impulse Calculator
Solve impulse J = FΔt for impulse, average force, or contact time.
Work Calculator
Calculate mechanical work W = Fd for work, force, or displacement.
Power Calculator
Solve power P = W/t for power, work, or time with physics units and steps.
Pressure Calculator
Calculate pressure, force, or area using P = F/A with pascal-based steps.
Density Calculator
Solve density, mass, or volume using density = mass / volume with lab-friendly steps.
Torque Calculator
Calculate torque, force, or lever arm distance using tau = Fr for perpendicular force.
Centripetal Force Calculator
Calculate centripetal force, mass, speed, or radius using F = mv^2/r.
Wave Speed Calculator
Solve wave speed v = f lambda for speed, frequency, or wavelength.
Wave Period Calculator
Convert between wave period and frequency using T = 1/f with clear reciprocal steps.
Ohm's Law Calculator
Solve voltage, current, or resistance using V = IR with electrical-unit steps.
Electrical Power Calculator
Calculate electrical power, voltage, or current from P = VI.
Charge Current Time Calculator
Solve electric charge Q = It for charge, current, or elapsed time.
Capacitance Charge Calculator
Solve Q = CV for capacitor charge, capacitance, or voltage with clear unit-aware circuit steps.
Specific Heat Calculator
Solve Q = mc delta T for heat energy, mass, specific heat, or temperature change.
Hooke's Law Calculator
Solve spring force F = kx for force, spring constant, or displacement.
Thermal Expansion Calculator
Estimate linear expansion delta L = alpha L delta T for length changes due to temperature.
Molarity Calculator
Solve molarity, moles of solute, or solution volume using M = n/V.
Dilution Calculator
Solve M1V1 = M2V2 for stock concentration, stock volume, final concentration, or final volume.
Moles to Mass Calculator
Convert between mass, moles, and molar mass using mass = moles x molar mass.
Percent Yield Calculator
Calculate percent yield, actual yield, or theoretical yield for chemistry lab reports.
pH and pOH Calculator
Convert between pH and pOH at 25 C using pH + pOH = 14 for acid-base homework checks.
Ideal Gas Law Calculator
Solve PV = nRT for pressure, volume, moles, or temperature using R = 8.314 kPa L/(mol K).
Buoyant Force Calculator
Solve buoyant force F_b = rho V g for fluid density, displaced volume, gravity, or upward force.
Hydrostatic Pressure Calculator
Solve hydrostatic pressure P = rho g h for pressure, fluid density, gravity, or depth.
Spring Potential Energy Calculator
Solve spring potential energy U = 1/2kx^2 for energy, spring constant, or stretch distance.
Gravitational Force Calculator
Solve Newton's law of gravitation F = Gm1m2/r^2 for force, mass, or center-to-center distance.
Snell's Law Calculator
Solve n1 sin(theta1) = n2 sin(theta2) for refractive index or angle in degrees.
Boyle's Law Calculator
Solve P1V1 = P2V2 for gas pressure or volume when temperature and moles stay constant.
Half-Life Calculator
Solve radioactive decay or repeated halving with remaining = initial x (1/2)^(time/half-life).
Gas Density Calculator
Estimate gas density from pressure, molar mass, and temperature using density = PM/RT.