Universal Unit Converter

Common Conversion Reference

Quick reference for frequently used unit conversions.

Length

  • 1 Inch (in)2.54 cm
  • 1 Foot (ft)0.3048 m
  • 1 Mile (mi)1.609 km

Area

  • 1 Acre4047 m²
  • 1 Hectare10,000 m²

Mass

  • 1 Kilogram (kg)2.205 lb
  • 1 Pound (lb)453.6 g
  • 1 Ounce (oz)28.35 g

Volume

  • 1 Gallon (US)3.785 L
  • 1 Fluid Oz (fl oz)29.57 ml
  • 1 Cubic Meter (m³)1000 L

Temp

  • 0 °C32 °F
  • 100 °C212 °F

Time

  • 1 Day86,400 s
  • 1 Year~3.15e7 s

Speed

  • 1 km/h0.62 mph
  • 1 m/s3.6 km/h
  • 1 Knot1.85 km/h