Physics & Engineering

Voltage, current, resistance and power from any two values.

Motion under constant acceleration — the SUVAT equations.

Newton's second law — force, mass and acceleration.

Kinetic and potential energy, and work done.

Density, mass or volume — solve for any one.

Pressure from force and area, in pascals, bar or psi.

Electrical and mechanical power, energy and running cost.

Convert between wavelength, frequency and wave speed.

Output voltage across a two-resistor divider.

Torque from force and lever arm, in Nm or lb-ft.