Barrels to Gallons Converter Online – Easily convert Barrels (bbl) to US Gallons (gal) and vice versa with our mobile-friendly calculator. Includes formulas, definitions, and conversion examples.
Barrels ⇄ Gallons Converter
Based on the standard Oil Barrel (42 US Gallons).
Definition, Formula & Examples
What is a Barrel?
A barrel is a unit of volume historically used in various contexts, from preserving food to transporting fluids. In the modern industrial world, the most common standard is the Oil Barrel (bbl). This unit is widely used in the petroleum industry to price and measure oil. It is important to note that different industries define “barrels” differently (for example, a beer barrel is smaller than an oil barrel), but the global standard for converting generic barrels to gallons usually refers to the oil barrel.
What is a Gallon?
The gallon is a unit of measurement for liquid capacity in both the US customary units and the British imperial systems of measurement. For this converter, we utilize the US Liquid Gallon, which is the standard volume unit used in the United States and many other regions for liquid commodities like gasoline and milk.
Conversion Formula
To convert between Oil Barrels and US Gallons, you use the standard factor of 42.
- 1 Oil Barrel (bbl) = 42 US Gallons (gal)
Mathematical Formulas:
- To convert Barrels to Gallons: Multiply the number of barrels by 42.
- Gallons = Barrels × 42
- To convert Gallons to Barrels: Divide the number of gallons by 42.
- Barrels = Gallons ÷ 42
Practical Example
Example 1: Converting Barrels to Gallons
Imagine you have an order for 5 barrels of crude oil, and you need to know the volume in gallons.
- Formula: 5 bbl × 42 = 210 gallons.
- Answer: 5 Barrels is equal to 210 Gallons.
Example 2: Converting Gallons to Barrels
If you have a storage tank containing 500 gallons of liquid and want to estimate how many barrels that equals:
- Formula: 500 gal ÷ 42 ≈ 11.90 barrels.
- Answer: 500 Gallons is approximately 11.9 Barrels.