Convert from drum [US, petroleum] to gill [UK]

Unit Definition (drum [US, petroleum])
The drum [US, petroleum] is a unit of volume sometimes used in the oil trade. The traditional standard drum of oil contains 55 U.S. gallons or about 208.198 liters. One 55-gallon drum equals 1.3095 barrels.

Unit Definition (gill [UK])
The gill [UK] is a traditional unit of volume for liquids, especially wine and other alcoholic beverages. The gill is 1/4 pint. In the British Imperial system, the gill equals 5 fluid ounces, 8.670 cubic inches, or about 137.7 milliliters. The unit is pronounced "jill", with a soft "g" sound. Its name comes a Latin word gillo for a small wine vessel.