Liter = Cubic decimeter
Symbol: l or L respectively dm3
One liter or litre equals the volume of a cube with a edge length of 10cm which is exact one cubic decimeter.
From 1901 to 1964 the litre was defined as the volume of one kilogram of pure water at 4°C and 760 millimetres of mercury pressure. During this time, a litre was about 1.000028 dm3. In 1964 this definition was abandoned in favour of the current one.
1L = 0.001m3
1m3 = 1,000L