The classic way to convey the error that exists in a measurement is a formula that shows the obtained measurement (X) as a sum of a true score plus some error. One version of this formula is: X = T + e. With this formula in mind, obtaining more precise measures depends on reducing error.
  Mega is the prefix meaning one million, therefore there are one million (1,000,000) gallons in a mega gallon.
Rating Newest Oldest. Best Answer: 1 US gallon = 3785.4118 mL. www.google.com has the answers. in the search, just type in whatever conversion you want. for instance, I typed in ml to gallon and it gave me the answer.