A barrel of crude oil is 158.97 liters. The international oil per barrel is 42 gallons. 1 ton is about 7 barrels. If the oil quality is light (thin), 1 ton is about 7.2 barrels or 7.3 barrels. Gas stations in the United States and Europe are usually in gallons, while gas stations in China are priced in liters. 1 barrel = 158.98 liters = 42 gallons. American 1 gallon = 3.785 liters, British 1 gallon = 4.546 liters.

It should be noted that different types of crude oil have different densities and qualities, so the weights of different crude oils are different under the same unit of volume, so the prices of Brent crude oil, WTI crude oil and Dubai crude oil will be different.

Units of measurement and conversion of crude oil;

1 bbl)=42 gallons (American) = 159 liters (l)=0. 159 cubic meters (m3);

One ton (t)=7.35 bbl (global average) = 1 174 liters;

1bbl = 0.137t =137kg (global average);

The specific gravity of crude oil varies from 0.8 to 1.0 kg/L, so the weight of a barrel of oil is different. About 128- 142 kg.