Mass per volume density.
Ounce per Cubic inches to Stones per Cup Converter — oz/in3 to st/cup
Convert Ounce per Cubic inch (oz/in3) to Stone per Cup (st/cup) using the exact conversion factor (1 ounce per cubic inch = 0.064453125 stone per cup). See the formula, worked examples, and conversion table.
Ounce per Cubic inches to Stones 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 1729.994044 / 26841.11972.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Ounce per Cubic inches to Stones per Cup
Ounce per Cubic inch and Stone 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
stones per cup = ounce per cubic inches × 0.064453125
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per cubic inch equals 1729.99404439 base units, and 1 stone per cup equals 26841.119719 base units, so dividing one by the other gives the direct ounce per cubic inch-to-stone per cup factor of 0.064453125.
Simple example
1 oz/in3 × 0.064453125 = 0.064453125 st/cup
1 ounce per cubic inch = 0.064453125 stones per cup.
Real-world example
1,000 oz/in3 × 0.064453125 = 64.453125 st/cup
1,000 ounce per cubic inches = 64.453125 stones per cup.
Conversion table
| Ounce per Cubic inch (oz/in3) | Stone per Cup (st/cup) |
|---|---|
| 0.1 oz/in3 | 0.0064453125 st/cup |
| 1 oz/in3 | 0.064453125 st/cup |
| 10 oz/in3 | 0.64453125 st/cup |
| 100 oz/in3 | 6.4453125 st/cup |
| 1,000 oz/in3 | 64.453125 st/cup |
| 10,000 oz/in3 | 644.53125 st/cup |
Reverse conversion: Stone per Cup to Ounce per Cubic inch
0.064453125 st/cup × 15.51515152 = 1 oz/in3
0.064453125 stones per cup = 1 ounce per cubic inches.
ounce per cubic inches = stones per cup × 15.5151515152
For a page dedicated to this direction, see Stone per Cup to Ounce per Cubic inch.
Understanding the Ounce per Cubic inch (oz/in3)
Mass per volume density.
Understanding the Stone per Cup (st/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per cup are in 1 ounce per cubic inch?
1 ounce per cubic inch equals 0.064453125 stones per cup, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per cubic inch to stone per cup?
Multiply the ounce per cubic inch value by 0.064453125. The converter above does this instantly to whatever precision you set.
How do I convert stone per cup back to ounce per cubic inch?
Use the reverse factor: 1 stone per cup equals 15.51515152 ounce per cubic inches. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per cubic inch?
Ounce per Cubic inch (oz/in3) is a unit of density.
What is a stone per cup?
Stone per Cup (st/cup) is a unit of density.
Is the ounce per cubic inch to stone per cup conversion exact?
Yes. Both ounce per cubic inch and stone per cup are defined by fixed standards rather than physical artifacts, so the factor of 0.064453125 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.