Mass per volume density.
Pounds per Imperial gallon to Stones per Cubic Meter Converter — lb/imp gal to st/m3
Convert Pound per Imperial gallon (lb/imp gal) to Stone per Cubic Meter (st/m3) using the exact conversion factor (1 pound per imperial gallon = 15.71208916 stone per cubic meter). See the formula, worked examples, and conversion table.
Pounds per Imperial gallon to Stones per Cubic Meter 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 / 6.35029318.
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 Meter
Pound per Imperial gallon and Stone per Cubic Meter 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 meter = pounds per imperial gallon × 15.7120891642
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 meter equals 6.35029318 base units, so dividing one by the other gives the direct pound per imperial gallon-to-stone per cubic meter factor of 15.7120891642.
Simple example
1 lb/imp gal × 15.71208916 = 15.71208916 st/m3
1 pound per imperial gallon = 15.71208916 stones per cubic meter.
Real-world example
1,000 lb/imp gal × 15.71208916 = 15,712.08916 st/m3
1,000 pounds per imperial gallon = 15,712.08916 stones per cubic meter.
Conversion table
| Pound per Imperial gallon (lb/imp gal) | Stone per Cubic Meter (st/m3) |
|---|---|
| 0.1 lb/imp gal | 1.571208916 st/m3 |
| 1 lb/imp gal | 15.71208916 st/m3 |
| 10 lb/imp gal | 157.1208916 st/m3 |
| 100 lb/imp gal | 1,571.208916 st/m3 |
| 1,000 lb/imp gal | 15,712.08916 st/m3 |
| 10,000 lb/imp gal | 157,120.8916 st/m3 |
Reverse conversion: Stone per Cubic Meter to Pound per Imperial gallon
15.71208916 st/m3 × 0.06364526 = 0.9999999997 lb/imp gal
15.71208916 stones per cubic meter = 0.9999999997 pounds per imperial gallon.
pounds per imperial gallon = stones per cubic meter × 0.06364526
For a page dedicated to this direction, see Stone per Cubic Meter to Pound per Imperial gallon.
Understanding the Pound per Imperial gallon (lb/imp gal)
Mass per volume density.
Understanding the Stone per Cubic Meter (st/m3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per cubic meter are in 1 pound per imperial gallon?
1 pound per imperial gallon equals 15.71208916 stones per cubic meter, using the exact defined conversion factor rather than an estimate.
How do I convert pound per imperial gallon to stone per cubic meter?
Multiply the pound per imperial gallon value by 15.71208916. The converter above does this instantly to whatever precision you set.
How do I convert stone per cubic meter back to pound per imperial gallon?
Use the reverse factor: 1 stone per cubic meter equals 0.06364526 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 meter?
Stone per Cubic Meter (st/m3) is a unit of density.
Is the pound per imperial gallon to stone per cubic meter conversion exact?
Yes. Both pound per imperial gallon and stone per cubic meter are defined by fixed standards rather than physical artifacts, so the factor of 15.71208916 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.