Mechanical Engineering Tools
Kinematic calculators for gear trains, belt drives, rotational RPM, bearing fatigue life, and mechanical advantage.
Free online general tools.
Bearing Life Calculator
Calculate ISO L10 rated fatigue life hours for ball and roller bearings under radial and axial loads.
Belt Length Calculator
Calculate open-loop two-pulley belt pitch length based on pulley diameters and center-to-center shaft distance.
Gear Ratio Calculator
Calculate drive and driven gear ratios, mechanical torque multiplication, and output shaft RPM.
Machine Efficiency Calculator
Calculate mechanical system energy efficiency percentage (η = Power Output / Power Input × 100%) and wasted heat dissipation.
Mechanical Advantage Calculator
Calculate ideal (IMA) and actual (AMA) mechanical advantage and efficiency for levers, pulleys, and inclined planes.
Motor Power Calculator
Determine required electric motor horsepower and kW needed to drive a given mechanical torque load at a target RPM.
Pulley Ratio Calculator
Determine pulley speed reduction ratio and driven shaft RPM based on pulley pitch diameters.
RPM Calculator
Calculate rotational RPM from linear surface cutting speed (SFM or m/min) and workpiece/cutter diameter.
Shaft Speed Calculator
Calculate linear surface velocity and shear stress on rotating drive shafts and axles.
Torque Calculator
Calculate mechanical torque from electric motor power (kW or HP) and rotational shaft speed (RPM).