Mass per volume density.
Troy ounces per Cup to Stones per Tablespoon Converter — oz t/cup to st/tbsp
Convert Troy ounce per Cup (oz t/cup) to Stone per Tablespoon (st/tbsp) using the exact conversion factor (1 troy ounce per cup = 0.0003061224 stone per tablespoon). See the formula, worked examples, and conversion table.
Troy ounces per Cup to Stones per Tablespoon 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 131.4667088 / 429457.9155.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Troy ounces per Cup to Stones per Tablespoon
Troy ounce per Cup and Stone per Tablespoon 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 tablespoon = troy ounces per cup × 0.00030612244898
This factor comes from each unit's defined relationship to the category's base unit: 1 troy ounce per cup equals 131.466708828 base units, and 1 stone per tablespoon equals 429457.915504 base units, so dividing one by the other gives the direct troy ounce per cup-to-stone per tablespoon factor of 0.00030612244898.
Simple example
1 oz t/cup × 0.000306122449 = 0.0003061224 st/tbsp
1 troy ounce per cup = 0.0003061224 stones per tablespoon.
Real-world example
1,000 oz t/cup × 0.000306122449 = 0.306122449 st/tbsp
1,000 troy ounces per cup = 0.306122449 stones per tablespoon.
Conversion table
| Troy ounce per Cup (oz t/cup) | Stone per Tablespoon (st/tbsp) |
|---|---|
| 0.1 oz t/cup | 0.0000306122 st/tbsp |
| 1 oz t/cup | 0.0003061224 st/tbsp |
| 10 oz t/cup | 0.0030612245 st/tbsp |
| 100 oz t/cup | 0.0306122449 st/tbsp |
| 1,000 oz t/cup | 0.306122449 st/tbsp |
| 10,000 oz t/cup | 3.06122449 st/tbsp |
Reverse conversion: Stone per Tablespoon to Troy ounce per Cup
0.0003061224 st/tbsp × 3266.666667 = 0.99999984 oz t/cup
0.0003061224 stones per tablespoon = 0.99999984 troy ounces per cup.
troy ounces per cup = stones per tablespoon × 3266.66666667
For a page dedicated to this direction, see Stone per Tablespoon to Troy ounce per Cup.
Understanding the Troy ounce per Cup (oz t/cup)
Mass per volume density.
Understanding the Stone per Tablespoon (st/tbsp)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per tablespoon are in 1 troy ounce per cup?
1 troy ounce per cup equals 0.0003061224 stones per tablespoon, using the exact defined conversion factor rather than an estimate.
How do I convert troy ounce per cup to stone per tablespoon?
Multiply the troy ounce per cup value by 0.000306122449. The converter above does this instantly to whatever precision you set.
How do I convert stone per tablespoon back to troy ounce per cup?
Use the reverse factor: 1 stone per tablespoon equals 3,266.666667 troy ounces per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a troy ounce per cup?
Troy ounce per Cup (oz t/cup) is a unit of density.
What is a stone per tablespoon?
Stone per Tablespoon (st/tbsp) is a unit of density.
Is the troy ounce per cup to stone per tablespoon conversion exact?
Yes. Both troy ounce per cup and stone per tablespoon are defined by fixed standards rather than physical artifacts, so the factor of 0.000306122449 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.