Mass per volume density.
Pounds per Imperial gallon to Stones per Cubic foot Converter — lb/imp gal to st/ft3
Convert Pound per Imperial gallon (lb/imp gal) to Stone per Cubic foot (st/ft3) using the exact conversion factor (1 pound per imperial gallon = 0.4449168185 stone per cubic foot). See the formula, worked examples, and conversion table.
Pounds per Imperial gallon to Stones per Cubic foot 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 / 224.2584872.
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 Stones per Cubic foot
Pound per Imperial gallon and Stone per Cubic foot 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
stones per cubic foot = pounds per imperial gallon × 0.444916818503
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 stone per cubic foot equals 224.258487235 base units, so dividing one by the other gives the direct pound per imperial gallon-to-stone per cubic foot factor of 0.444916818503.
Simple example
1 lb/imp gal × 0.4449168185 = 0.4449168185 st/ft3
1 pound per imperial gallon = 0.4449168185 stones per cubic foot.
Real-world example
1,000 lb/imp gal × 0.4449168185 = 444.9168185 st/ft3
1,000 pounds per imperial gallon = 444.9168185 stones per cubic foot.
Conversion table
| Pound per Imperial gallon (lb/imp gal) | Stone per Cubic foot (st/ft3) |
|---|---|
| 0.1 lb/imp gal | 0.0444916819 st/ft3 |
| 1 lb/imp gal | 0.4449168185 st/ft3 |
| 10 lb/imp gal | 4.449168185 st/ft3 |
| 100 lb/imp gal | 44.49168185 st/ft3 |
| 1,000 lb/imp gal | 444.9168185 st/ft3 |
| 10,000 lb/imp gal | 4,449.168185 st/ft3 |
Reverse conversion: Stone per Cubic foot to Pound per Imperial gallon
0.4449168185 st/ft3 × 2.247611145 = 1 lb/imp gal
0.4449168185 stones per cubic foot = 1 pounds per imperial gallon.
pounds per imperial gallon = stones per cubic foot × 2.2476111453
For a page dedicated to this direction, see Stone per Cubic foot to Pound per Imperial gallon.
Understanding the Pound per Imperial gallon (lb/imp gal)
Mass per volume density.
Understanding the Stone per Cubic foot (st/ft3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per cubic foot are in 1 pound per imperial gallon?
1 pound per imperial gallon equals 0.4449168185 stones per cubic foot, using the exact defined conversion factor rather than an estimate.
How do I convert pound per imperial gallon to stone per cubic foot?
Multiply the pound per imperial gallon value by 0.4449168185. The converter above does this instantly to whatever precision you set.
How do I convert stone per cubic foot back to pound per imperial gallon?
Use the reverse factor: 1 stone per cubic foot equals 2.247611145 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 stone per cubic foot?
Stone per Cubic foot (st/ft3) is a unit of density.
Is the pound per imperial gallon to stone per cubic foot conversion exact?
Yes. Both pound per imperial gallon and stone per cubic foot are defined by fixed standards rather than physical artifacts, so the factor of 0.4449168185 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.