Mass per volume density.
Stones per Quart to Long tons per Cubic yard Converter — st/qt to long ton/yd3
Convert Stone per Quart (st/qt) to Long ton per Cubic yard (long ton/yd3) using the exact conversion factor (1 stone per quart = 5.049350649 long ton per cubic yard). See the formula, worked examples, and conversion table.
Stones per Quart to Long tons 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 6710.27993 / 1328.939184.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Quart to Long tons per Cubic yard
Stone per Quart and Long ton 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
long tons per cubic yard = stones per quart × 5.04935064935
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per quart equals 6710.27992975 base units, and 1 long ton per cubic yard equals 1328.93918362 base units, so dividing one by the other gives the direct stone per quart-to-long ton per cubic yard factor of 5.04935064935.
Simple example
1 st/qt × 5.049350649 = 5.049350649 long ton/yd3
1 stone per quart = 5.049350649 long tons per cubic yard.
Real-world example
1,000 st/qt × 5.049350649 = 5,049.350649 long ton/yd3
1,000 stones per quart = 5,049.350649 long tons per cubic yard.
Conversion table
| Stone per Quart (st/qt) | Long ton per Cubic yard (long ton/yd3) |
|---|---|
| 0.1 st/qt | 0.5049350649 long ton/yd3 |
| 1 st/qt | 5.049350649 long ton/yd3 |
| 10 st/qt | 50.49350649 long ton/yd3 |
| 100 st/qt | 504.9350649 long ton/yd3 |
| 1,000 st/qt | 5,049.350649 long ton/yd3 |
| 10,000 st/qt | 50,493.50649 long ton/yd3 |
Reverse conversion: Long ton per Cubic yard to Stone per Quart
5.049350649 long ton/yd3 × 0.1980452675 = 0.9999999999 st/qt
5.049350649 long tons per cubic yard = 0.9999999999 stones per quart.
stones per quart = long tons per cubic yard × 0.19804526749
For a page dedicated to this direction, see Long ton per Cubic yard to Stone per Quart.
Understanding the Stone per Quart (st/qt)
Mass per volume density.
Understanding the Long ton per Cubic yard (long ton/yd3)
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 yard are in 1 stone per quart?
1 stone per quart equals 5.049350649 long tons per cubic yard, using the exact defined conversion factor rather than an estimate.
How do I convert stone per quart to long ton per cubic yard?
Multiply the stone per quart value by 5.049350649. The converter above does this instantly to whatever precision you set.
How do I convert long ton per cubic yard back to stone per quart?
Use the reverse factor: 1 long ton per cubic yard equals 0.1980452675 stones per quart. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per quart?
Stone per Quart (st/qt) is a unit of density.
What is a long ton per cubic yard?
Long ton per Cubic yard (long ton/yd3) is a unit of density.
Is the stone per quart to long ton per cubic yard conversion exact?
Yes. Both stone per quart and long ton per cubic yard are defined by fixed standards rather than physical artifacts, so the factor of 5.049350649 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.