Convert Imperial Gallon to US Liquid Barrel
Convert imperial gallons to us liquid barrels instantly. 1 imperial gallon = 0.0381253945 us liquid barrel — use the live calculator, the exact formula, a conversion table and worked examples. Also check the US Liquid Barrel to Imperial Gallon converter for the reverse conversion.
Units explained
Imperial Gallon
The imperial gallon is defined as exactly 4.54609 liters.
Set by the British Weights and Measures Act of 1824 as the volume of 10 lb of water.
Used for fuel and beverages in the UK and Commonwealth.
UK, 1824.
US Liquid Barrel
A US liquid barrel is 31.5 US gallons (119.24 L).
A federal standard barrel size for non-petroleum liquids.
Used in brewing and bulk-liquid commerce.
US trade standard.
Imperial Gallon to US Liquid Barrel conversion formula
The relationship between imperial gallons and us liquid barrels:
To convert imperial gallons to us liquid barrels, multiply the value in imperial gallons by 0.0381253945. To reverse, multiply us liquid barrels by 26.2292368158.
How to use this converter
Type a value into the calculator. The result in us liquid barrels updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the US Liquid Barrel to Imperial Gallon converter for the reverse direction.
Step-by-step: convert imperial gallons to us liquid barrels
- Write down the value in imperial gallons (gal).
- Multiply that value by the factor 0.0381253945.
- The product is the equivalent value in us liquid barrels (bbl).
- To reverse, multiply the us liquid barrel value by 26.2292368158.
Worked examples
Example 1 — Convert 1 gal to bbl:
1 × 0.0381253945 = 0.0381253945 bbl
Example 2 — Convert 100 gal to bbl:
100 × 0.0381253945 = 3.812539446 bbl
Real-world example — Children's height milestones
A 150-imperial gallon-tall child measures a value in us liquid barrels that's commonly used for theme-park ride height requirements when travelling between countries that use different measurement units.
150 gal × 0.0381253945 = 5.7188091691 bbl
Real-world example — Body height conversion
You enter your height as 180 imperial gallons into an international job or visa application. The form then asks for the same value in us liquid barrels — converting between these adjacent units is one of the most-used length conversions globally.
180 gal × 0.0381253945 = 6.8625710029 bbl
Real-world example — Furniture and large objects
A 72-imperial gallon piece of furniture converts to a value in us liquid barrels that's easier to mentally compare with room dimensions. This is the typical workflow when shopping internationally and product specs use a different unit than your room measurements.
72 gal × 0.0381253945 = 2.7450284012 bbl
Imperial Gallon to US Liquid Barrel conversion table
Standard reference values for converting imperial gallons to us liquid barrels:
| Imperial Gallon [gal] | US Liquid Barrel [bbl] |
|---|---|
| 0.01 | 0.0003812539 |
| 0.1 | 0.0038125394 |
| 1 | 0.0381253945 |
| 2 | 0.0762507889 |
| 3 | 0.1143761834 |
| 4 | 0.1525015778 |
| 5 | 0.1906269723 |
| 10 | 0.3812539446 |
| 20 | 0.7625078892 |
| 30 | 1.1437618338 |
| 40 | 1.5250157784 |
| 50 | 1.906269723 |
| 100 | 3.812539446 |
| 500 | 19.0626972302 |
| 1000 | 38.1253944605 |
Frequently asked questions
How many us liquid barrels is 1 imperial gallon?
How do I convert imperial gallons to us liquid barrels?
How do I convert us liquid barrels back to imperial gallons?
How many us liquid barrels is 100 imperial gallons?
Popular volume unit conversions
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Metric / SI (15 units)
US Customary (Liquid) (15 units)
US Customary (Dry) (5 units)
Imperial (UK) (13 units)
Cubic (length-derived) (4 units)
Cooking / Culinary (5 units)
Sources & references
Conversion factor (1 gal = 0.0381253945 bbl) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.