PrismKitUnitsVolume ConverterVolume ConverterRuns in your browserLocalCopy linkMarkdownConvert litres and cubic units to US and imperial gallons, pints, cups and spoons side by side.Area ConverterSee one area in square metres, hectares, acres, square feet, square miles and more.Speed ConverterExpress a speed in km/h, mph, m/s, ft/s, knots or as a fraction of the speed of light.