Mass per volume density.
Pounds per Gallon to Ounces per Imperial gallon Converter — lb/gal to oz/imp gal
Convert Pound per Gallon (lb/gal) to Ounce per Imperial gallon (oz/imp gal) using the exact conversion factor (1 pound per gallon = 19.21519881 ounce per imperial gallon). See the formula, worked examples, conversion table, and common uses.
Pounds per Gallon to Ounces per Imperial gallon converter
Converter
Density Converter
Convert thousands of mass-per-volume density combinations for science, engineering, agriculture, and fluids.
Context values
Some unit families need one extra value for a physically accurate result.
Mass per volume density.
Result = input x 119.8264273 / 6.236023291.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Gallon to Ounces per Imperial gallon
Pound per Gallon and Ounce per Imperial gallon both measure density — mass per unit volume — a property used to identify materials, check manufacturing quality, and predict whether something floats or sinks. As a fixed reference point, water has a density of exactly 1000 kg/m³ (1 g/cm³, 1 g/mL) at its temperature of maximum density, which is why many density figures in science and engineering are quoted relative to water. Pound per Gallon is most often used for us paint and coatings density specifications.
Formula
ounces per imperial gallon = pounds per gallon × 19.2151988081
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per gallon equals 119.826427317 base units, and 1 ounce per imperial gallon equals 6.23602329144 base units, so dividing one by the other gives the direct pound per gallon-to-ounce per imperial gallon factor of 19.2151988081.
Simple example
1 lb/gal × 19.21519881 = 19.21519881 oz/imp gal
1 pound per gallon = 19.21519881 ounces per imperial gallon.
Real-world example
1,000 lb/gal × 19.21519881 = 19,215.19881 oz/imp gal
1,000 pounds per gallon = 19,215.19881 ounces per imperial gallon.
Conversion table
| Pound per Gallon (lb/gal) | Ounce per Imperial gallon (oz/imp gal) |
|---|---|
| 0.1 lb/gal | 1.921519881 oz/imp gal |
| 1 lb/gal | 19.21519881 oz/imp gal |
| 10 lb/gal | 192.1519881 oz/imp gal |
| 100 lb/gal | 1,921.519881 oz/imp gal |
| 1,000 lb/gal | 19,215.19881 oz/imp gal |
| 10,000 lb/gal | 192,151.9881 oz/imp gal |
Reverse conversion: Ounce per Imperial gallon to Pound per Gallon
19.21519881 oz/imp gal × 0.05204213654 = 1 lb/gal
19.21519881 ounces per imperial gallon = 1 pounds per gallon.
pounds per gallon = ounces per imperial gallon × 0.0520421365393
For a page dedicated to this direction, see Ounce per Imperial gallon to Pound per Gallon.
Understanding the Pound per Gallon
Pound per Gallon (lb/gal) measures density. The US customary unit for liquid density, based on the US gallon (231 cubic inches). It is classified as a US customary density unit.
Where it's used: United States (paint, fuel, and industrial liquid density specifications)
lb/gal vs. lb/ft³. Both are US customary density units; they're related through the real, fixed relationship between the US gallon and the cubic foot (1 cubic foot ≈ 7.48 US gallons), not a round conversion factor.
Uses of the Pound per Gallon today
- US paint and coatings density specifications
- US fuel and petroleum liquid density specs
- Industrial liquid handling and shipping weight calculations
Understanding the Ounce per Imperial gallon (oz/imp gal)
Mass per volume density.
Pound per Gallon — sources
- NIST Handbook 44 — General tables of units including US customary density measures.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many ounces per imperial gallon are in 1 pound per gallon?
1 pound per gallon equals 19.21519881 ounces per imperial gallon, using the exact defined conversion factor rather than an estimate.
How do I convert pound per gallon to ounce per imperial gallon?
Multiply the pound per gallon value by 19.21519881. The converter above does this instantly to whatever precision you set.
How do I convert ounce per imperial gallon back to pound per gallon?
Use the reverse factor: 1 ounce per imperial gallon equals 0.0520421365 pounds per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per gallon?
Pound per Gallon (lb/gal) measures density. The US customary unit for liquid density, based on the US gallon (231 cubic inches). It is classified as a US customary density unit.
What is a ounce per imperial gallon?
Ounce per Imperial gallon (oz/imp gal) is a unit of density.
Is the pound per gallon to ounce per imperial gallon conversion exact?
Yes. Both pound per gallon and ounce per imperial gallon are defined by fixed standards rather than physical artifacts, so the factor of 19.21519881 used above is exact to as many digits as you choose to display.
What is the difference between lb/gal vs. lb/ft³?
Both are US customary density units; they're related through the real, fixed relationship between the US gallon and the cubic foot (1 cubic foot ≈ 7.48 US gallons), not a round conversion factor.
Where is the pound per gallon still used today?
United States (paint, fuel, and industrial liquid density specifications)