Mass per volume density.
Stones per Tablespoon to Troy ounces per Cup Converter — st/tbsp to oz t/cup
Convert Stone per Tablespoon (st/tbsp) to Troy ounce per Cup (oz t/cup) using the exact conversion factor (1 stone per tablespoon = 3,266.666667 troy ounce per cup). See the formula, worked examples, and conversion table.
Stones per Tablespoon 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 429457.9155 / 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 Tablespoon to Troy ounces per Cup
Stone per Tablespoon 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 tablespoon × 3266.66666667
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per tablespoon equals 429457.915504 base units, and 1 troy ounce per cup equals 131.466708828 base units, so dividing one by the other gives the direct stone per tablespoon-to-troy ounce per cup factor of 3266.66666667.
Simple example
1 st/tbsp × 3266.666667 = 3,266.666667 oz t/cup
1 stone per tablespoon = 3,266.666667 troy ounces per cup.
Real-world example
1,000 st/tbsp × 3266.666667 = 3,266,666.667 oz t/cup
1,000 stones per tablespoon = 3,266,666.667 troy ounces per cup.
Conversion table
| Stone per Tablespoon (st/tbsp) | Troy ounce per Cup (oz t/cup) |
|---|---|
| 0.1 st/tbsp | 326.6666667 oz t/cup |
| 1 st/tbsp | 3,266.666667 oz t/cup |
| 10 st/tbsp | 32,666.66667 oz t/cup |
| 100 st/tbsp | 326,666.6667 oz t/cup |
| 1,000 st/tbsp | 3,266,666.667 oz t/cup |
| 10,000 st/tbsp | 32,666,666.67 oz t/cup |
Reverse conversion: Troy ounce per Cup to Stone per Tablespoon
1 oz t/cup × 0.000306122449 = 0.0003061224 st/tbsp
1 troy ounce per cup = 0.0003061224 stones per tablespoon.
stones per tablespoon = troy ounces per cup × 0.00030612244898
For a page dedicated to this direction, see Troy ounce per Cup to Stone per Tablespoon.
Understanding the Stone per Tablespoon (st/tbsp)
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 tablespoon?
1 stone per tablespoon equals 3,266.666667 troy ounces per cup, using the exact defined conversion factor rather than an estimate.
How do I convert stone per tablespoon to troy ounce per cup?
Multiply the stone per tablespoon value by 3266.666667. The converter above does this instantly to whatever precision you set.
How do I convert troy ounce per cup back to stone per tablespoon?
Use the reverse factor: 1 troy ounce per cup equals 0.0003061224 stones per tablespoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per tablespoon?
Stone per Tablespoon (st/tbsp) 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 tablespoon to troy ounce per cup conversion exact?
Yes. Both stone per tablespoon and troy ounce per cup are defined by fixed standards rather than physical artifacts, so the factor of 3266.666667 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.