
Length Converter
Convert lengths ( mm, cm, m, km, in, ft, yd, mi, ...) between metric and U.S. units, including feet and inches, with exact factors and the conversion steps shown.
Notes, problems and apps that share tags with this app, the closest match first.

Convert lengths ( mm, cm, m, km, in, ft, yd, mi, ...) between metric and U.S. units, including feet and inches, with exact factors and the conversion steps shown.

Convert areas between mm², cm², m², in², ft², acres, hectares and more, with exact factors and the conversion steps shown.

Convert forces between newtons, kilonewtons, pound-force, kips, kilogram-force and more, with exact factors and the conversion steps shown.

Convert moments and torques between N·m, N·mm, kN·m, lbf·in, lbf·ft, kip·ft, kgf·m and more, with exact factors and the steps shown.

Convert time between nanoseconds, seconds, minutes, hours, days, weeks and years, or split a duration into hours, minutes and seconds.

Convert temperatures between °C, °F, K and °R, and temperature differences without the offset, with the formulas shown step by step.

Convert the second moment of area (mm⁴, cm⁴, in⁴, ft⁴) and the mass moment of inertia (kg·m², lb·ft², slug·ft²) with exact factors and steps.

Convert stress and pressure between Pa, kPa, MPa, GPa, psi, ksi, bar, atm, mmHg and more, with exact factors and the conversion steps shown.

Convert angles between degrees, radians, degrees-minutes-seconds, gradians and turns, with exact π-based factors and the steps shown.

Convert speeds between m/s, km/h, ft/s, mph and knots, and rotational speeds between rpm and rad/s, with the conversion steps shown.