Unit Converter

The units engineers mix up most, in one place. Enter a value and see it in every unit of the chosen category at once.

UnitsSIImperial

METHOD

How it is calculated

1 bar = 10⁵ Pa = 0.1 MPa ≈ 14.504 psi
1 kgf = 9.80665 N      1 lbf·ft ≈ 1.3558 N·m
T[°F] = T[°C] · 9/5 + 32      T[K] = T[°C] + 273.15

ASSUMPTIONS & NOTES

Results are for preliminary design and checking; base the final design on the governing standard and safety factors.

RELATED TOOLS

Keyboard-friendly expression calculator with trigonometry, logarithms, powers, factorials and constants.

All sides, angles, area and perimeter from three sides, two sides and the included angle, or two angles and a side.

Find intermediate values between table entries — steam tables, material catalogues, calibration curves.

The basis of every motor and shaft calculation: P = T·ω, in kW, hp and PS.

Preload and tightening torque for metric bolts, with a VDI 2230 equivalent-stress check.

Minimum solid shaft diameter under combined bending and torsion (ASME shaft code), with a standard size.