Mass per volume density.
Troy ounces per Fluid ounce to Stones per Teaspoon Converter — oz t/fl oz to st/tsp
Convert Troy ounce per Fluid ounce (oz t/fl oz) to Stone per Teaspoon (st/tsp) using the exact conversion factor (1 troy ounce per fluid ounce = 0.0008163265 stone per teaspoon). See the formula, worked examples, and conversion table.
Troy ounces per Fluid ounce to Stones per Teaspoon 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 1051.733671 / 1.28837375e+6.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Troy ounces per Fluid ounce to Stones per Teaspoon
Troy ounce per Fluid ounce and Stone per Teaspoon 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 teaspoon = troy ounces per fluid ounce × 0.000816326530612
This factor comes from each unit's defined relationship to the category's base unit: 1 troy ounce per fluid ounce equals 1051.73367062 base units, and 1 stone per teaspoon equals 1288373.74651 base units, so dividing one by the other gives the direct troy ounce per fluid ounce-to-stone per teaspoon factor of 0.000816326530612.
Simple example
1 oz t/fl oz × 0.0008163265306 = 0.0008163265 st/tsp
1 troy ounce per fluid ounce = 0.0008163265 stones per teaspoon.
Real-world example
1,000 oz t/fl oz × 0.0008163265306 = 0.8163265306 st/tsp
1,000 troy ounces per fluid ounce = 0.8163265306 stones per teaspoon.
Conversion table
| Troy ounce per Fluid ounce (oz t/fl oz) | Stone per Teaspoon (st/tsp) |
|---|---|
| 0.1 oz t/fl oz | 0.0000816327 st/tsp |
| 1 oz t/fl oz | 0.0008163265 st/tsp |
| 10 oz t/fl oz | 0.0081632653 st/tsp |
| 100 oz t/fl oz | 0.0816326531 st/tsp |
| 1,000 oz t/fl oz | 0.8163265306 st/tsp |
| 10,000 oz t/fl oz | 8.163265306 st/tsp |
Reverse conversion: Stone per Teaspoon to Troy ounce per Fluid ounce
0.0008163265 st/tsp × 1225 = 0.9999999625 oz t/fl oz
0.0008163265 stones per teaspoon = 0.9999999625 troy ounces per fluid ounce.
troy ounces per fluid ounce = stones per teaspoon × 1225
For a page dedicated to this direction, see Stone per Teaspoon to Troy ounce per Fluid ounce.
Understanding the Troy ounce per Fluid ounce (oz t/fl oz)
Mass per volume density.
Understanding the Stone per Teaspoon (st/tsp)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per teaspoon are in 1 troy ounce per fluid ounce?
1 troy ounce per fluid ounce equals 0.0008163265 stones per teaspoon, using the exact defined conversion factor rather than an estimate.
How do I convert troy ounce per fluid ounce to stone per teaspoon?
Multiply the troy ounce per fluid ounce value by 0.0008163265306. The converter above does this instantly to whatever precision you set.
How do I convert stone per teaspoon back to troy ounce per fluid ounce?
Use the reverse factor: 1 stone per teaspoon equals 1,225 troy ounces per fluid ounce. You can also use the swap control in the converter above to flip the direction instantly.
What is a troy ounce per fluid ounce?
Troy ounce per Fluid ounce (oz t/fl oz) is a unit of density.
What is a stone per teaspoon?
Stone per Teaspoon (st/tsp) is a unit of density.
Is the troy ounce per fluid ounce to stone per teaspoon conversion exact?
Yes. Both troy ounce per fluid ounce and stone per teaspoon are defined by fixed standards rather than physical artifacts, so the factor of 0.0008163265306 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.