2.In fractional representation.one liter is equal to 1000 milliliters。3.One gallon (U.S.measure) is approximately 3785.4 milliliters.while one gallon (British measure) is approximately 4546.1 milliliters。4.In South Korea.one liter is approximately equal to 1800 milliliters；in Japan.one liter is approximately equal to 1803.9 milliliters。