Mechanical calculators

Torque, gear ratio, belt length and pressure conversion.

Mechanical

Torque from force, lever arm length and angle, in N·m, lbf·ft and kgf·m.

Mechanical

Gear ratio, output speed and output torque from driver and driven gear teeth.

Mechanical

Open-belt length for two pulleys from their diameters and centre distance, plus wrap angle on the small pulley.

Mechanical

Convert pressure between bar, psi, kPa, MPa, Pa, atm, mbar, mmHg and inches of water.