Mass per volume density.
Ounces per Imperial gallon to Pounds per Fluid ounce Converter — oz/imp gal to lb/fl oz
Convert Ounce per Imperial gallon (oz/imp gal) to Pound per Fluid ounce (lb/fl oz) using the exact conversion factor (1 ounce per imperial gallon = 0.0004065792 pound per fluid ounce). See the formula, worked examples, and conversion table.
Ounces per Imperial gallon to Pounds per Fluid ounce 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 6.236023291 / 15337.7827.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Ounces per Imperial gallon to Pounds per Fluid ounce
Ounce per Imperial gallon and Pound per Fluid ounce 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. Both are mass per volume density units.
Formula
pounds per fluid ounce = ounces per imperial gallon × 0.000406579191713
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per imperial gallon equals 6.23602329144 base units, and 1 pound per fluid ounce equals 15337.7826966 base units, so dividing one by the other gives the direct ounce per imperial gallon-to-pound per fluid ounce factor of 0.000406579191713.
Simple example
1 oz/imp gal × 0.0004065791917 = 0.0004065792 lb/fl oz
1 ounce per imperial gallon = 0.0004065792 pounds per fluid ounce.
Real-world example
1,000 oz/imp gal × 0.0004065791917 = 0.4065791917 lb/fl oz
1,000 ounces per imperial gallon = 0.4065791917 pounds per fluid ounce.
Conversion table
| Ounce per Imperial gallon (oz/imp gal) | Pound per Fluid ounce (lb/fl oz) |
|---|---|
| 0.1 oz/imp gal | 0.0000406579 lb/fl oz |
| 1 oz/imp gal | 0.0004065792 lb/fl oz |
| 10 oz/imp gal | 0.0040657919 lb/fl oz |
| 100 oz/imp gal | 0.0406579192 lb/fl oz |
| 1,000 oz/imp gal | 0.4065791917 lb/fl oz |
| 10,000 oz/imp gal | 4.065791917 lb/fl oz |
Reverse conversion: Pound per Fluid ounce to Ounce per Imperial gallon
0.0004065792 lb/fl oz × 2459.545447 = 1.00000002 oz/imp gal
0.0004065792 pounds per fluid ounce = 1.00000002 ounces per imperial gallon.
ounces per imperial gallon = pounds per fluid ounce × 2459.54544743
For a page dedicated to this direction, see Pound per Fluid ounce to Ounce per Imperial gallon.
Understanding the Ounce per Imperial gallon (oz/imp gal)
Mass per volume density.
Understanding the Pound per Fluid ounce (lb/fl oz)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per fluid ounce are in 1 ounce per imperial gallon?
1 ounce per imperial gallon equals 0.0004065792 pounds per fluid ounce, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per imperial gallon to pound per fluid ounce?
Multiply the ounce per imperial gallon value by 0.0004065791917. The converter above does this instantly to whatever precision you set.
How do I convert pound per fluid ounce back to ounce per imperial gallon?
Use the reverse factor: 1 pound per fluid ounce equals 2,459.545447 ounces per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per imperial gallon?
Ounce per Imperial gallon (oz/imp gal) is a unit of density.
What is a pound per fluid ounce?
Pound per Fluid ounce (lb/fl oz) is a unit of density.
Is the ounce per imperial gallon to pound per fluid ounce conversion exact?
Yes. Both ounce per imperial gallon and pound per fluid ounce are defined by fixed standards rather than physical artifacts, so the factor of 0.0004065791917 used above is exact to as many digits as you choose to display.
What's the difference between density and mass concentration?
Density is the mass of a pure substance or material per unit volume. Mass concentration is the mass of one component — like a dissolved solute — within a mixture's total volume. The two use the same kind of units but describe different physical situations.