Mass per volume density.
Stones per Cubic yard to Long tons per Cubic foot Converter — st/yd3 to long ton/ft3
Convert Stone per Cubic yard (st/yd3) to Long ton per Cubic foot (long ton/ft3) using the exact conversion factor (1 stone per cubic yard = 0.0002314815 long ton per cubic foot). See the formula, worked examples, and conversion table.
Stones per Cubic yard to Long tons 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 8.305869898 / 35881.35796.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Cubic yard to Long tons per Cubic foot
Stone per Cubic yard and Long ton 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
long tons per cubic foot = stones per cubic yard × 0.000231481481481
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per cubic yard equals 8.30586989761 base units, and 1 long ton per cubic foot equals 35881.3579577 base units, so dividing one by the other gives the direct stone per cubic yard-to-long ton per cubic foot factor of 0.000231481481481.
Simple example
1 st/yd3 × 0.0002314814815 = 0.0002314815 long ton/ft3
1 stone per cubic yard = 0.0002314815 long tons per cubic foot.
Real-world example
1,000 st/yd3 × 0.0002314814815 = 0.2314814815 long ton/ft3
1,000 stones per cubic yard = 0.2314814815 long tons per cubic foot.
Conversion table
| Stone per Cubic yard (st/yd3) | Long ton per Cubic foot (long ton/ft3) |
|---|---|
| 0.1 st/yd3 | 0.0000231481 long ton/ft3 |
| 1 st/yd3 | 0.0002314815 long ton/ft3 |
| 10 st/yd3 | 0.0023148148 long ton/ft3 |
| 100 st/yd3 | 0.0231481482 long ton/ft3 |
| 1,000 st/yd3 | 0.2314814815 long ton/ft3 |
| 10,000 st/yd3 | 2.314814815 long ton/ft3 |
Reverse conversion: Long ton per Cubic foot to Stone per Cubic yard
0.0002314815 long ton/ft3 × 4320 = 1.00000008 st/yd3
0.0002314815 long tons per cubic foot = 1.00000008 stones per cubic yard.
stones per cubic yard = long tons per cubic foot × 4320
For a page dedicated to this direction, see Long ton per Cubic foot to Stone per Cubic yard.
Understanding the Stone per Cubic yard (st/yd3)
Mass per volume density.
Understanding the Long ton per Cubic foot (long ton/ft3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many long tons per cubic foot are in 1 stone per cubic yard?
1 stone per cubic yard equals 0.0002314815 long tons per cubic foot, using the exact defined conversion factor rather than an estimate.
How do I convert stone per cubic yard to long ton per cubic foot?
Multiply the stone per cubic yard value by 0.0002314814815. The converter above does this instantly to whatever precision you set.
How do I convert long ton per cubic foot back to stone per cubic yard?
Use the reverse factor: 1 long ton per cubic foot equals 4,320 stones per cubic yard. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per cubic yard?
Stone per Cubic yard (st/yd3) is a unit of density.
What is a long ton per cubic foot?
Long ton per Cubic foot (long ton/ft3) is a unit of density.
Is the stone per cubic yard to long ton per cubic foot conversion exact?
Yes. Both stone per cubic yard and long ton per cubic foot are defined by fixed standards rather than physical artifacts, so the factor of 0.0002314814815 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.