Nikolas Cassadine is a fictional character from General Hospital, an American soap opera on the ABC network. Originated by actor Tyler Christopher in 1996, he left the show on July 14, 1999. Due to Nikolas' importance on the soap, he was immediately replaced by Coltin Scott on July 20, 1999. Scott left the role on April 16, 2003, as Christopher made his return on April 21, 2003. Christopher vacated the role on July 28, 2011, after he was let go from the series.
There are 3785.4117840007 milliliter in a gallon. 1 Gallon is equal to 3785.4117840007 Milliliter. 1 gal = 3785.4117840007 mL. A gallon is a unit of volume measurement used widely in the US and a few other countries of the world. The US gallon is usually used for measuring volume of liquid or gaseous substances like gasoline, other types of fuel, etc.
You're able to find this by first converting a gallon to a liter (US gal=3.78541178 liters), breaking that into mL (3785.41178). A milliliter of pure water (hydrogen oxide, no minerals or anything, which water almost always has) weighs exactly a gram.