Mass per volume density.
Ounces per Teaspoon to Stones per Quart Converter — oz/tsp to st/qt
Convert Ounce per Teaspoon (oz/tsp) to Stone per Quart (st/qt) using the exact conversion factor (1 ounce per teaspoon = 0.8571428571 stone per quart). See the formula, worked examples, and conversion table.
Ounces per Teaspoon to Stones per Quart 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 5751.668511 / 6710.27993.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Ounces per Teaspoon to Stones per Quart
Ounce per Teaspoon and Stone per Quart 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 quart = ounces per teaspoon × 0.857142857143
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per teaspoon equals 5751.66851121 base units, and 1 stone per quart equals 6710.27992975 base units, so dividing one by the other gives the direct ounce per teaspoon-to-stone per quart factor of 0.857142857143.
Simple example
1 oz/tsp × 0.8571428571 = 0.8571428571 st/qt
1 ounce per teaspoon = 0.8571428571 stones per quart.
Real-world example
1,000 oz/tsp × 0.8571428571 = 857.1428571 st/qt
1,000 ounces per teaspoon = 857.1428571 stones per quart.
Conversion table
| Ounce per Teaspoon (oz/tsp) | Stone per Quart (st/qt) |
|---|---|
| 0.1 oz/tsp | 0.0857142857 st/qt |
| 1 oz/tsp | 0.8571428571 st/qt |
| 10 oz/tsp | 8.571428571 st/qt |
| 100 oz/tsp | 85.71428571 st/qt |
| 1,000 oz/tsp | 857.1428571 st/qt |
| 10,000 oz/tsp | 8,571.428571 st/qt |
Reverse conversion: Stone per Quart to Ounce per Teaspoon
0.8571428571 st/qt × 1.166666667 = 0.9999999999 oz/tsp
0.8571428571 stones per quart = 0.9999999999 ounces per teaspoon.
ounces per teaspoon = stones per quart × 1.16666666667
For a page dedicated to this direction, see Stone per Quart to Ounce per Teaspoon.
Understanding the Ounce per Teaspoon (oz/tsp)
Mass per volume density.
Understanding the Stone per Quart (st/qt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per quart are in 1 ounce per teaspoon?
1 ounce per teaspoon equals 0.8571428571 stones per quart, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per teaspoon to stone per quart?
Multiply the ounce per teaspoon value by 0.8571428571. The converter above does this instantly to whatever precision you set.
How do I convert stone per quart back to ounce per teaspoon?
Use the reverse factor: 1 stone per quart equals 1.166666667 ounces per teaspoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per teaspoon?
Ounce per Teaspoon (oz/tsp) is a unit of density.
What is a stone per quart?
Stone per Quart (st/qt) is a unit of density.
Is the ounce per teaspoon to stone per quart conversion exact?
Yes. Both ounce per teaspoon and stone per quart are defined by fixed standards rather than physical artifacts, so the factor of 0.8571428571 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.