Engineering

Acceleration, density, torque, moments and rotational units, compound unit expressions and screw thread sizes.

10 tools

Angular Velocity ConverterConvert rotational speed between radians per second, degrees per second and RPM.
Acceleration ConverterConvert m/s², ft/s², standard gravity (g) and gal.
Angular Acceleration ConverterConvert rad/s², degrees per second squared and revolutions per minute squared.
Density ConverterConvert kg/m³, g/cm³, pounds per cubic foot, pounds per gallon and more.
Specific Volume ConverterConvert volume per unit mass — m³/kg, L/kg, ft³/lb and more.
Moment of Inertia ConverterConvert rotational inertia between kg·m², g·cm², lb·ft² and slug·ft².
Moment of Force ConverterConvert moments (force × lever arm) between N·m, kgf·m, lbf·ft and more.
Torque ConverterConvert torque between newton meters, foot-pounds, inch-pounds and kgf·m.
Compound Unit ConverterType any unit expression — kg·m/s², BTU/(h·ft²·°F), N·m, lbf/in² — and convert it, or see its SI form and name.
Thread Size Converter (Metric ↔ UNC/UNF)Look up a metric or inch thread (M10, M8x1, 1/4-20, #10-32) — pitch, threads per inch, tap drill and the nearest size in the other system.