Mass per volume density.
Pounds per Cubic Meter to Stones per Imperial gallon Converter — lb/m3 to st/imp gal
Convert Pound per Cubic Meter (lb/m3) to Stone per Imperial gallon (st/imp gal) using the exact conversion factor (1 pound per cubic meter = 0.0003247207 stone per imperial gallon). See the formula, worked examples, and conversion table.
Pounds per Cubic Meter to Stones 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 0.45359237 / 1396.869217.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Cubic Meter to Stones per Imperial gallon
Pound per Cubic Meter and Stone 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
stones per imperial gallon = pounds per cubic meter × 0.000324720714286
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per cubic meter equals 0.45359237 base units, and 1 stone per imperial gallon equals 1396.86921728 base units, so dividing one by the other gives the direct pound per cubic meter-to-stone per imperial gallon factor of 0.000324720714286.
Simple example
1 lb/m3 × 0.0003247207143 = 0.0003247207 st/imp gal
1 pound per cubic meter = 0.0003247207 stones per imperial gallon.
Real-world example
1,000 lb/m3 × 0.0003247207143 = 0.3247207143 st/imp gal
1,000 pounds per cubic meter = 0.3247207143 stones per imperial gallon.
Conversion table
| Pound per Cubic Meter (lb/m3) | Stone per Imperial gallon (st/imp gal) |
|---|---|
| 0.1 lb/m3 | 0.0000324721 st/imp gal |
| 1 lb/m3 | 0.0003247207 st/imp gal |
| 10 lb/m3 | 0.0032472071 st/imp gal |
| 100 lb/m3 | 0.0324720714 st/imp gal |
| 1,000 lb/m3 | 0.3247207143 st/imp gal |
| 10,000 lb/m3 | 3.247207143 st/imp gal |
Reverse conversion: Stone per Imperial gallon to Pound per Cubic Meter
0.0003247207 st/imp gal × 3079.569476 = 0.999999956 lb/m3
0.0003247207 stones per imperial gallon = 0.999999956 pounds per cubic meter.
pounds per cubic meter = stones per imperial gallon × 3079.56947619
For a page dedicated to this direction, see Stone per Imperial gallon to Pound per Cubic Meter.
Understanding the Pound per Cubic Meter (lb/m3)
Mass per volume density.
Understanding the Stone per Imperial gallon (st/imp gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per imperial gallon are in 1 pound per cubic meter?
1 pound per cubic meter equals 0.0003247207 stones per imperial gallon, using the exact defined conversion factor rather than an estimate.
How do I convert pound per cubic meter to stone per imperial gallon?
Multiply the pound per cubic meter value by 0.0003247207143. The converter above does this instantly to whatever precision you set.
How do I convert stone per imperial gallon back to pound per cubic meter?
Use the reverse factor: 1 stone per imperial gallon equals 3,079.569476 pounds per cubic meter. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per cubic meter?
Pound per Cubic Meter (lb/m3) is a unit of density.
What is a stone per imperial gallon?
Stone per Imperial gallon (st/imp gal) is a unit of density.
Is the pound per cubic meter to stone per imperial gallon conversion exact?
Yes. Both pound per cubic meter and stone per imperial gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.0003247207143 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.