Mass per volume density.
Slugs per Cubic foot to Pounds per Imperial gallon Converter — slug/ft3 to lb/imp gal
Convert Slug per Cubic foot (slug/ft3) to Pound per Imperial gallon (lb/imp gal) using the exact conversion factor (1 slug per cubic foot = 5.165339295 pound per imperial gallon). See the formula, worked examples, and conversion table.
Slugs per Cubic foot to Pounds 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 515.3788184 / 99.77637266.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Slugs per Cubic foot to Pounds per Imperial gallon
Slug per Cubic foot and Pound 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. Both are mass per volume density units.
Formula
pounds per imperial gallon = slugs per cubic foot × 5.16533929464
This factor comes from each unit's defined relationship to the category's base unit: 1 slug per cubic foot equals 515.378818393 base units, and 1 pound per imperial gallon equals 99.7763726631 base units, so dividing one by the other gives the direct slug per cubic foot-to-pound per imperial gallon factor of 5.16533929464.
Simple example
1 slug/ft3 × 5.165339295 = 5.165339295 lb/imp gal
1 slug per cubic foot = 5.165339295 pounds per imperial gallon.
Real-world example
1,000 slug/ft3 × 5.165339295 = 5,165.339295 lb/imp gal
1,000 slugs per cubic foot = 5,165.339295 pounds per imperial gallon.
Conversion table
| Slug per Cubic foot (slug/ft3) | Pound per Imperial gallon (lb/imp gal) |
|---|---|
| 0.1 slug/ft3 | 0.5165339295 lb/imp gal |
| 1 slug/ft3 | 5.165339295 lb/imp gal |
| 10 slug/ft3 | 51.65339295 lb/imp gal |
| 100 slug/ft3 | 516.5339295 lb/imp gal |
| 1,000 slug/ft3 | 5,165.339295 lb/imp gal |
| 10,000 slug/ft3 | 51,653.39295 lb/imp gal |
Reverse conversion: Pound per Imperial gallon to Slug per Cubic foot
5.165339295 lb/imp gal × 0.1935981245 = 1 slug/ft3
5.165339295 pounds per imperial gallon = 1 slugs per cubic foot.
slugs per cubic foot = pounds per imperial gallon × 0.193598124529
For a page dedicated to this direction, see Pound per Imperial gallon to Slug per Cubic foot.
Understanding the Slug per Cubic foot (slug/ft3)
Mass per volume density.
Understanding the Pound per Imperial gallon (lb/imp gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per imperial gallon are in 1 slug per cubic foot?
1 slug per cubic foot equals 5.165339295 pounds per imperial gallon, using the exact defined conversion factor rather than an estimate.
How do I convert slug per cubic foot to pound per imperial gallon?
Multiply the slug per cubic foot value by 5.165339295. The converter above does this instantly to whatever precision you set.
How do I convert pound per imperial gallon back to slug per cubic foot?
Use the reverse factor: 1 pound per imperial gallon equals 0.1935981245 slugs per cubic foot. You can also use the swap control in the converter above to flip the direction instantly.
What is a slug per cubic foot?
Slug per Cubic foot (slug/ft3) is a unit of density.
What is a pound per imperial gallon?
Pound per Imperial gallon (lb/imp gal) is a unit of density.
Is the slug per cubic foot to pound per imperial gallon conversion exact?
Yes. Both slug per cubic foot and pound per imperial gallon are defined by fixed standards rather than physical artifacts, so the factor of 5.165339295 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.