Mass per volume density.
Pounds per Cubic Meter to Stones per Cubic yard Converter — lb/m3 to st/yd3
Convert Pound per Cubic Meter (lb/m3) to Stone per Cubic yard (st/yd3) using the exact conversion factor (1 pound per cubic meter = 0.0546110613 stone per cubic yard). See the formula, worked examples, and conversion table.
Pounds per Cubic Meter to Stones per Cubic yard 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 / 8.305869898.
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 Cubic yard
Pound per Cubic Meter and Stone per Cubic yard 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 yard = pounds per cubic meter × 0.0546110612846
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 cubic yard equals 8.30586989761 base units, so dividing one by the other gives the direct pound per cubic meter-to-stone per cubic yard factor of 0.0546110612846.
Simple example
1 lb/m3 × 0.05461106128 = 0.0546110613 st/yd3
1 pound per cubic meter = 0.0546110613 stones per cubic yard.
Real-world example
1,000 lb/m3 × 0.05461106128 = 54.61106128 st/yd3
1,000 pounds per cubic meter = 54.61106128 stones per cubic yard.
Conversion table
| Pound per Cubic Meter (lb/m3) | Stone per Cubic yard (st/yd3) |
|---|---|
| 0.1 lb/m3 | 0.0054611061 st/yd3 |
| 1 lb/m3 | 0.0546110613 st/yd3 |
| 10 lb/m3 | 0.5461106128 st/yd3 |
| 100 lb/m3 | 5.461106128 st/yd3 |
| 1,000 lb/m3 | 54.61106128 st/yd3 |
| 10,000 lb/m3 | 546.1106128 st/yd3 |
Reverse conversion: Stone per Cubic yard to Pound per Cubic Meter
0.0546110613 st/yd3 × 18.31130867 = 1 lb/m3
0.0546110613 stones per cubic yard = 1 pounds per cubic meter.
pounds per cubic meter = stones per cubic yard × 18.3113086704
For a page dedicated to this direction, see Stone per Cubic yard to Pound per Cubic Meter.
Understanding the Pound per Cubic Meter (lb/m3)
Mass per volume density.
Understanding the Stone per Cubic yard (st/yd3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per cubic yard are in 1 pound per cubic meter?
1 pound per cubic meter equals 0.0546110613 stones per cubic yard, using the exact defined conversion factor rather than an estimate.
How do I convert pound per cubic meter to stone per cubic yard?
Multiply the pound per cubic meter value by 0.05461106128. The converter above does this instantly to whatever precision you set.
How do I convert stone per cubic yard back to pound per cubic meter?
Use the reverse factor: 1 stone per cubic yard equals 18.31130867 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 cubic yard?
Stone per Cubic yard (st/yd3) is a unit of density.
Is the pound per cubic meter to stone per cubic yard conversion exact?
Yes. Both pound per cubic meter and stone per cubic yard are defined by fixed standards rather than physical artifacts, so the factor of 0.05461106128 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.