Historic Gallons to Litres

The gallon size has changed over the centuries. When interpreting historic beers it is important to use the correct liquid volume. N.B The American gallon is the old English wine gallon.

Date Gallon Cubic Inches % of Imp. Gallon Litres
1601 Wine/Troy? 231 83.267% 3.7854119
1601 Ale 282 101.65% 4.62115205
1824 Imperial 276.8 4.5359393
1976 Imperial 277.42 4.54609