Engineering Conversion Tables

Use these conversion tables to perform common conversions involving units of length, area, volume, weight, pressure, density, speed, flow rate, torque, temperature, and angles. Enter a known value in the appropriate edit box and press the corresponding “calculate” button (immediately below the edit boxes) to convert to the remaining units.

Please note that some numbers may be displayed in scientific notation. Scientific notation displays very large or small numbers as equivalent powers of 10 (represented by the letter E).

Length Units

Centimetres (cm) Millimetres (mm) Metres (m) Inches (in) Feet (ft) Yards (yd)

Area Units

Square Centimetres (cm²) Square Millimetres (mm²) Square Metres (m²) Square Inches (in²) Square Feet (ft²) Square Yards (yd²)

Volume Units

Cubic Centimetres (cm³) Cubic Millimetres (mm³) Cubic Metres (m³) Cubic Inches (in³) Cubic Feet (ft³) Cubic Yards (yd³)
Fluid Ounces (Fl. Oz.) Litres (L) Quarts (qt) US Gallons (gal) UK Gallons (gal)  

Weight Units

Kilograms (kg) Grams (g) Ounces (oz) Pounds (lb) Troy Pounds (lb t)
Short Tons Metric Tonnes  

Pressure Units

Bars (bar) Megapascal (MPa) Kilopascal (kPa) Kilogram per Square Centimeter (kg/cm²) Pounds per Square Inch (lb/in²) Inches of Mercury (inHg)
Feet H₂0 Inches H₂0 Newtons per Square Millimetre (N/mm²) Standard Atmosphere (atm)  

Density Units

Pounds per Cubic Foot (lb/ft³) Pounds per Cubic Inch (lb/in³) Kilogram per Cubic Metre (kg/m³) Kilogram per Cubic Centimetre (kg/cm³) Grams per Cubic Centimetre (g/cm³)

Speed Units

Metres per Second (m/s) Inches per Second (in/s) Feet per Second (ft/s) Feet per Minute (ft/min) Feet per Hour (ft/hr)

Flow Rate Units

Cubic Feet per Minute (ft³/min) Cubic Feet per Second (ft³/s) Cubic Metres per Hour (m³/hr) Cubic Metres per Minute (m³/min) Cubic Metres per Second (meters³/sec)
US Gallons per Minute (gal/min) UK Gallons per Minute (gal/min)  

Torque Units

Pound-feet (lb·ft) Pound-inches (lb·in) Metre-kilogram (kg·m) Newton Metres (N·m)

Temperature Units

Degrees Fahrenheit (°F) Degrees Celsius (°C) Kelvin (K)

Angular Units

Degrees Radians