Litre

The litre (American spelling: liter; SI symbol L or l) is a non-SI metric system unit of volume equal to 1 cubic decimetre (dm3), 1,000 cubic centimetres (cm3) or 1/1,000 cubic metre. If the lower case L is used as the symbol, it is sometimes rendered as a cursive ℓ to help distinguish it from the capital "I", although this usage has no official approval by any international bureau.