Mass per volume density.
Troy ounces per Cup to Stones per Fluid ounce Converter — oz t/cup to st/fl oz
Convert Troy ounce per Cup (oz t/cup) to Stone per Fluid ounce (st/fl oz) using the exact conversion factor (1 troy ounce per cup = 0.0006122449 stone per fluid ounce). See the formula, worked examples, and conversion table.
Troy ounces per Cup to Stones per Fluid ounce 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 / 214728.9578.
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 Fluid ounce
Troy ounce per Cup and Stone per Fluid ounce 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 fluid ounce = troy ounces per cup × 0.000612244897959
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 fluid ounce equals 214728.957752 base units, so dividing one by the other gives the direct troy ounce per cup-to-stone per fluid ounce factor of 0.000612244897959.
Simple example
1 oz t/cup × 0.000612244898 = 0.0006122449 st/fl oz
1 troy ounce per cup = 0.0006122449 stones per fluid ounce.
Real-world example
1,000 oz t/cup × 0.000612244898 = 0.612244898 st/fl oz
1,000 troy ounces per cup = 0.612244898 stones per fluid ounce.
Conversion table
| Troy ounce per Cup (oz t/cup) | Stone per Fluid ounce (st/fl oz) |
|---|---|
| 0.1 oz t/cup | 0.0000612245 st/fl oz |
| 1 oz t/cup | 0.0006122449 st/fl oz |
| 10 oz t/cup | 0.006122449 st/fl oz |
| 100 oz t/cup | 0.0612244898 st/fl oz |
| 1,000 oz t/cup | 0.612244898 st/fl oz |
| 10,000 oz t/cup | 6.12244898 st/fl oz |
Reverse conversion: Stone per Fluid ounce to Troy ounce per Cup
0.0006122449 st/fl oz × 1633.333333 = 1.000000003 oz t/cup
0.0006122449 stones per fluid ounce = 1.000000003 troy ounces per cup.
troy ounces per cup = stones per fluid ounce × 1633.33333333
For a page dedicated to this direction, see Stone per Fluid ounce to Troy ounce per Cup.
Understanding the Troy ounce per Cup (oz t/cup)
Mass per volume density.
Understanding the Stone per Fluid ounce (st/fl oz)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per fluid ounce are in 1 troy ounce per cup?
1 troy ounce per cup equals 0.0006122449 stones per fluid ounce, using the exact defined conversion factor rather than an estimate.
How do I convert troy ounce per cup to stone per fluid ounce?
Multiply the troy ounce per cup value by 0.000612244898. The converter above does this instantly to whatever precision you set.
How do I convert stone per fluid ounce back to troy ounce per cup?
Use the reverse factor: 1 stone per fluid ounce equals 1,633.333333 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 fluid ounce?
Stone per Fluid ounce (st/fl oz) is a unit of density.
Is the troy ounce per cup to stone per fluid ounce conversion exact?
Yes. Both troy ounce per cup and stone per fluid ounce are defined by fixed standards rather than physical artifacts, so the factor of 0.000612244898 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.