Mass per volume density.
Pounds per Cubic yard to Stones per Gallon Converter — lb/yd3 to st/gal
Convert Pound per Cubic yard (lb/yd3) to Stone per Gallon (st/gal) using the exact conversion factor (1 pound per cubic yard = 0.0003536523 stone per gallon). See the formula, worked examples, and conversion table.
Pounds per Cubic yard to Stones per 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 0.5932764213 / 1677.569982.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Cubic yard to Stones per Gallon
Pound per Cubic yard and Stone per 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 gallon = pounds per cubic yard × 0.000353652263374
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per cubic yard equals 0.593276421258 base units, and 1 stone per gallon equals 1677.56998244 base units, so dividing one by the other gives the direct pound per cubic yard-to-stone per gallon factor of 0.000353652263374.
Simple example
1 lb/yd3 × 0.0003536522634 = 0.0003536523 st/gal
1 pound per cubic yard = 0.0003536523 stones per gallon.
Real-world example
1,000 lb/yd3 × 0.0003536522634 = 0.3536522634 st/gal
1,000 pounds per cubic yard = 0.3536522634 stones per gallon.
Conversion table
| Pound per Cubic yard (lb/yd3) | Stone per Gallon (st/gal) |
|---|---|
| 0.1 lb/yd3 | 0.0000353652 st/gal |
| 1 lb/yd3 | 0.0003536523 st/gal |
| 10 lb/yd3 | 0.0035365226 st/gal |
| 100 lb/yd3 | 0.0353652263 st/gal |
| 1,000 lb/yd3 | 0.3536522634 st/gal |
| 10,000 lb/yd3 | 3.536522634 st/gal |
Reverse conversion: Stone per Gallon to Pound per Cubic yard
0.0003536523 st/gal × 2827.636364 = 1.000000104 lb/yd3
0.0003536523 stones per gallon = 1.000000104 pounds per cubic yard.
pounds per cubic yard = stones per gallon × 2827.63636364
For a page dedicated to this direction, see Stone per Gallon to Pound per Cubic yard.
Understanding the Pound per Cubic yard (lb/yd3)
Mass per volume density.
Understanding the Stone per Gallon (st/gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per gallon are in 1 pound per cubic yard?
1 pound per cubic yard equals 0.0003536523 stones per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert pound per cubic yard to stone per gallon?
Multiply the pound per cubic yard value by 0.0003536522634. The converter above does this instantly to whatever precision you set.
How do I convert stone per gallon back to pound per cubic yard?
Use the reverse factor: 1 stone per gallon equals 2,827.636364 pounds per cubic yard. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per cubic yard?
Pound per Cubic yard (lb/yd3) is a unit of density.
What is a stone per gallon?
Stone per Gallon (st/gal) is a unit of density.
Is the pound per cubic yard to stone per gallon conversion exact?
Yes. Both pound per cubic yard and stone per gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.0003536522634 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.