Mass per volume density.
Stones per Teaspoon to Troy ounces per Cup Converter — st/tsp to oz t/cup
Convert Stone per Teaspoon (st/tsp) to Troy ounce per Cup (oz t/cup) using the exact conversion factor (1 stone per teaspoon = 9,800 troy ounce per cup). See the formula, worked examples, and conversion table.
Stones per Teaspoon to Troy ounces per Cup 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 1.28837375e+6 / 131.4667088.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Teaspoon to Troy ounces per Cup
Stone per Teaspoon and Troy ounce per Cup 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
troy ounces per cup = stones per teaspoon × 9800
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per teaspoon equals 1288373.74651 base units, and 1 troy ounce per cup equals 131.466708828 base units, so dividing one by the other gives the direct stone per teaspoon-to-troy ounce per cup factor of 9800.
Simple example
1 st/tsp × 9800 = 9,800 oz t/cup
1 stone per teaspoon = 9,800 troy ounces per cup.
Real-world example
1,000 st/tsp × 9800 = 9,800,000 oz t/cup
1,000 stones per teaspoon = 9,800,000 troy ounces per cup.
Conversion table
| Stone per Teaspoon (st/tsp) | Troy ounce per Cup (oz t/cup) |
|---|---|
| 0.1 st/tsp | 980 oz t/cup |
| 1 st/tsp | 9,800 oz t/cup |
| 10 st/tsp | 98,000 oz t/cup |
| 100 st/tsp | 980,000 oz t/cup |
| 1,000 st/tsp | 9,800,000 oz t/cup |
| 10,000 st/tsp | 98,000,000 oz t/cup |
Reverse conversion: Troy ounce per Cup to Stone per Teaspoon
1 oz t/cup × 0.0001020408163 = 0.0001020408 st/tsp
1 troy ounce per cup = 0.0001020408 stones per teaspoon.
stones per teaspoon = troy ounces per cup × 0.000102040816327
For a page dedicated to this direction, see Troy ounce per Cup to Stone per Teaspoon.
Understanding the Stone per Teaspoon (st/tsp)
Mass per volume density.
Understanding the Troy ounce per Cup (oz t/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many troy ounces per cup are in 1 stone per teaspoon?
1 stone per teaspoon equals 9,800 troy ounces per cup, using the exact defined conversion factor rather than an estimate.
How do I convert stone per teaspoon to troy ounce per cup?
Multiply the stone per teaspoon value by 9800. The converter above does this instantly to whatever precision you set.
How do I convert troy ounce per cup back to stone per teaspoon?
Use the reverse factor: 1 troy ounce per cup equals 0.0001020408 stones per teaspoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per teaspoon?
Stone per Teaspoon (st/tsp) is a unit of density.
What is a troy ounce per cup?
Troy ounce per Cup (oz t/cup) is a unit of density.
Is the stone per teaspoon to troy ounce per cup conversion exact?
Yes. Both stone per teaspoon and troy ounce per cup are defined by fixed standards rather than physical artifacts, so the factor of 9800 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.