Mass per volume density.
Pounds per Imperial gallon to Slugs per Fluid ounce Converter — lb/imp gal to slug/fl oz
Convert Pound per Imperial gallon (lb/imp gal) to Slug per Fluid ounce (slug/fl oz) using the exact conversion factor (1 pound per imperial gallon = 0.0002021899 slug per fluid ounce). See the formula, worked examples, and conversion table.
Pounds per Imperial gallon to Slugs 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 99.77637266 / 493478.5652.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Imperial gallon to Slugs per Fluid ounce
Pound per Imperial gallon and Slug 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
slugs per fluid ounce = pounds per imperial gallon × 0.000202189881575
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per imperial gallon equals 99.7763726631 base units, and 1 slug per fluid ounce equals 493478.565227 base units, so dividing one by the other gives the direct pound per imperial gallon-to-slug per fluid ounce factor of 0.000202189881575.
Simple example
1 lb/imp gal × 0.0002021898816 = 0.0002021899 slug/fl oz
1 pound per imperial gallon = 0.0002021899 slugs per fluid ounce.
Real-world example
1,000 lb/imp gal × 0.0002021898816 = 0.2021898816 slug/fl oz
1,000 pounds per imperial gallon = 0.2021898816 slugs per fluid ounce.
Conversion table
| Pound per Imperial gallon (lb/imp gal) | Slug per Fluid ounce (slug/fl oz) |
|---|---|
| 0.1 lb/imp gal | 0.000020219 slug/fl oz |
| 1 lb/imp gal | 0.0002021899 slug/fl oz |
| 10 lb/imp gal | 0.0020218988 slug/fl oz |
| 100 lb/imp gal | 0.0202189882 slug/fl oz |
| 1,000 lb/imp gal | 0.2021898816 slug/fl oz |
| 10,000 lb/imp gal | 2.021898816 slug/fl oz |
Reverse conversion: Slug per Fluid ounce to Pound per Imperial gallon
0.0002021899 slug/fl oz × 4945.845916 = 1.000000091 lb/imp gal
0.0002021899 slugs per fluid ounce = 1.000000091 pounds per imperial gallon.
pounds per imperial gallon = slugs per fluid ounce × 4945.84591578
For a page dedicated to this direction, see Slug per Fluid ounce to Pound per Imperial gallon.
Understanding the Pound per Imperial gallon (lb/imp gal)
Mass per volume density.
Understanding the Slug per Fluid ounce (slug/fl oz)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many slugs per fluid ounce are in 1 pound per imperial gallon?
1 pound per imperial gallon equals 0.0002021899 slugs per fluid ounce, using the exact defined conversion factor rather than an estimate.
How do I convert pound per imperial gallon to slug per fluid ounce?
Multiply the pound per imperial gallon value by 0.0002021898816. The converter above does this instantly to whatever precision you set.
How do I convert slug per fluid ounce back to pound per imperial gallon?
Use the reverse factor: 1 slug per fluid ounce equals 4,945.845916 pounds per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per imperial gallon?
Pound per Imperial gallon (lb/imp gal) is a unit of density.
What is a slug per fluid ounce?
Slug per Fluid ounce (slug/fl oz) is a unit of density.
Is the pound per imperial gallon to slug per fluid ounce conversion exact?
Yes. Both pound per imperial gallon and slug per fluid ounce are defined by fixed standards rather than physical artifacts, so the factor of 0.0002021898816 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.