Mass per volume density.
Ounces per Cubic foot to Stone per Cubic inches Converter — oz/ft3 to st/in3
Convert Ounce per Cubic foot (oz/ft3) to Stone per Cubic inch (st/in3) using the exact conversion factor (1 ounce per cubic foot = 0.0000025835 stone per cubic inch). See the formula, worked examples, and conversion table.
Ounces per Cubic foot to Stone per Cubic inches 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 1.001153961 / 387518.6659.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Ounces per Cubic foot to Stone per Cubic inches
Ounce per Cubic foot and Stone per Cubic inch 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
stone per cubic inches = ounces per cubic foot × 0.00000258349867725
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per cubic foot equals 1.00115396087 base units, and 1 stone per cubic inch equals 387518.665943 base units, so dividing one by the other gives the direct ounce per cubic foot-to-stone per cubic inch factor of 0.00000258349867725.
Simple example
1 oz/ft3 × 0.000002583498677 = 0.0000025835 st/in3
1 ounce per cubic foot = 0.0000025835 stone per cubic inches.
Real-world example
1,000 oz/ft3 × 0.000002583498677 = 0.0025834987 st/in3
1,000 ounces per cubic foot = 0.0025834987 stone per cubic inches.
Conversion table
| Ounce per Cubic foot (oz/ft3) | Stone per Cubic inch (st/in3) |
|---|---|
| 0.1 oz/ft3 | 2.583499e-7 st/in3 |
| 1 oz/ft3 | 0.0000025835 st/in3 |
| 10 oz/ft3 | 0.000025835 st/in3 |
| 100 oz/ft3 | 0.0002583499 st/in3 |
| 1,000 oz/ft3 | 0.0025834987 st/in3 |
| 10,000 oz/ft3 | 0.0258349868 st/in3 |
Reverse conversion: Stone per Cubic inch to Ounce per Cubic foot
0.0000025835 st/in3 × 387072 = 1.000000512 oz/ft3
0.0000025835 stone per cubic inches = 1.000000512 ounces per cubic foot.
ounces per cubic foot = stone per cubic inches × 387072
For a page dedicated to this direction, see Stone per Cubic inch to Ounce per Cubic foot.
Understanding the Ounce per Cubic foot (oz/ft3)
Mass per volume density.
Understanding the Stone per Cubic inch (st/in3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stone per cubic inches are in 1 ounce per cubic foot?
1 ounce per cubic foot equals 0.0000025835 stone per cubic inches, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per cubic foot to stone per cubic inch?
Multiply the ounce per cubic foot value by 0.000002583498677. The converter above does this instantly to whatever precision you set.
How do I convert stone per cubic inch back to ounce per cubic foot?
Use the reverse factor: 1 stone per cubic inch equals 387,072 ounces per cubic foot. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per cubic foot?
Ounce per Cubic foot (oz/ft3) is a unit of density.
What is a stone per cubic inch?
Stone per Cubic inch (st/in3) is a unit of density.
Is the ounce per cubic foot to stone per cubic inch conversion exact?
Yes. Both ounce per cubic foot and stone per cubic inch are defined by fixed standards rather than physical artifacts, so the factor of 0.000002583498677 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.