Mass per volume density.
Grain per Cubic inches to Stones per Cubic foot Converter — gr/in3 to st/ft3
Convert Grain per Cubic inch (gr/in3) to Stone per Cubic foot (st/ft3) using the exact conversion factor (1 grain per cubic inch = 0.0176326531 stone per cubic foot). See the formula, worked examples, and conversion table.
Grain per Cubic inches to Stones per Cubic foot 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 3.954272101 / 224.2584872.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grain per Cubic inches to Stones per Cubic foot
Grain per Cubic inch and Stone per Cubic foot 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 cubic foot = grain per cubic inches × 0.0176326530612
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per cubic inch equals 3.95427210146 base units, and 1 stone per cubic foot equals 224.258487235 base units, so dividing one by the other gives the direct grain per cubic inch-to-stone per cubic foot factor of 0.0176326530612.
Simple example
1 gr/in3 × 0.01763265306 = 0.0176326531 st/ft3
1 grain per cubic inch = 0.0176326531 stones per cubic foot.
Real-world example
1,000 gr/in3 × 0.01763265306 = 17.63265306 st/ft3
1,000 grain per cubic inches = 17.63265306 stones per cubic foot.
Conversion table
| Grain per Cubic inch (gr/in3) | Stone per Cubic foot (st/ft3) |
|---|---|
| 0.1 gr/in3 | 0.0017632653 st/ft3 |
| 1 gr/in3 | 0.0176326531 st/ft3 |
| 10 gr/in3 | 0.1763265306 st/ft3 |
| 100 gr/in3 | 1.763265306 st/ft3 |
| 1,000 gr/in3 | 17.63265306 st/ft3 |
| 10,000 gr/in3 | 176.3265306 st/ft3 |
Reverse conversion: Stone per Cubic foot to Grain per Cubic inch
0.0176326531 st/ft3 × 56.71296296 = 1.000000002 gr/in3
0.0176326531 stones per cubic foot = 1.000000002 grain per cubic inches.
grain per cubic inches = stones per cubic foot × 56.712962963
For a page dedicated to this direction, see Stone per Cubic foot to Grain per Cubic inch.
Understanding the Grain per Cubic inch (gr/in3)
Mass per volume density.
Understanding the Stone per Cubic foot (st/ft3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per cubic foot are in 1 grain per cubic inch?
1 grain per cubic inch equals 0.0176326531 stones per cubic foot, using the exact defined conversion factor rather than an estimate.
How do I convert grain per cubic inch to stone per cubic foot?
Multiply the grain per cubic inch value by 0.01763265306. The converter above does this instantly to whatever precision you set.
How do I convert stone per cubic foot back to grain per cubic inch?
Use the reverse factor: 1 stone per cubic foot equals 56.71296296 grain per cubic inches. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per cubic inch?
Grain per Cubic inch (gr/in3) is a unit of density.
What is a stone per cubic foot?
Stone per Cubic foot (st/ft3) is a unit of density.
Is the grain per cubic inch to stone per cubic foot conversion exact?
Yes. Both grain per cubic inch and stone per cubic foot are defined by fixed standards rather than physical artifacts, so the factor of 0.01763265306 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.