Physics Calculators

Enter any two of voltage, current, resistance, or power; the other two are solved instantly using V=IR and P=VI.

Calculate density, mass, or volume from any two known values, with full unit conversion and a clickable reference table of 20 materials.

Solve for speed, distance, or time given any two values, with full unit conversion and simultaneous multi-unit output.

Solve KE = ½mv² for any missing variable. Supports multiple units with automatic conversion and step-by-step working.

Solve v = f × λ for wave speed, frequency, or wavelength with multi-unit support and step-by-step working.