Physics

Acceleration Calculator

Calculate linear acceleration, initial or final velocity, or time from the kinematic equation a = Δv ÷ t, with g-force output and distance-travelled estimate.

Angular Velocity Calculator

Calculate angular velocity, rotational frequency, period, linear speed, or radius for circular motion using the relationships ω = 2πf = 2π/T = v/r.

Buoyancy Calculator

Calculate buoyant force on a submerged object from fluid density and displaced volume using Archimedes' principle F_b = ρgV, with float/sink determination.

Density Calculator

Calculate density, mass, or volume from the other two known values using the density = mass ÷ volume relationship, with multiple unit options and reference material comparisons.

Dew Point Calculator

Calculate dew point temperature from air temperature and relative humidity using the Magnus formula, or solve for relative humidity from dew point.

Half-Life Calculator

Calculate remaining quantity, elapsed time, half-life, or initial quantity in radioactive or exponential decay using N(t) = N₀ × (½)^(t ÷ t½), with decay constant output.

Heat Index Calculator

Estimate apparent temperature from air temperature and relative humidity using the NWS Rothfusz heat index formula, with heat danger category and safety guidance.

Ideal Gas Law Calculator

Solve for pressure, volume, moles, or temperature in the ideal gas equation PV = nRT, with multiple unit options and mass estimates for common gases.

Impact Force Calculator

Estimate average impact force from object mass and velocity using either stopping distance (work-energy theorem) or stopping time (impulse-momentum theorem).

Kinetic Energy Calculator

Calculate kinetic energy, mass, or velocity from the other two using KE = ½mv², with energy unit conversions and equivalent drop-height context.

Mass Calculator

Calculate mass, density, or volume from the other two known values using the relationship mass = density × volume, with multi-unit support.

Terminal Velocity Calculator

Estimate terminal velocity from mass, drag coefficient, cross-sectional area, and fluid density using v_t = √(2mg ÷ ρAC_d), with presets for common objects and fluids.

Thermal Expansion Calculator

Calculate linear, area, or volume expansion of materials due to temperature change using expansion coefficients, with presets for steel, aluminium, glass, and more.

Weight Force Calculator

Calculate gravitational weight force from mass and local gravitational acceleration (W = mg), with planet presets for Earth, Moon, Mars, and more.

Wind Chill Calculator

Estimate apparent temperature from air temperature and wind speed using the NOAA/Environment Canada wind chill formula, with frostbite risk time and danger category.