Mass per volume density.
Grains per Cubic foot to Stones per Gallon Converter — gr/ft3 to st/gal
Convert Grain per Cubic foot (gr/ft3) to Stone per Gallon (st/gal) using the exact conversion factor (1 grain per cubic foot = 0.0000013641 stone per gallon). See the formula, worked examples, and conversion table.
Grains per Cubic foot to Stones per Gallon 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 0.002288351911 / 1677.569982.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Cubic foot to Stones per Gallon
Grain per Cubic foot and Stone per Gallon 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 gallon = grains per cubic foot × 0.00000136408730159
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per cubic foot equals 0.00228835191057 base units, and 1 stone per gallon equals 1677.56998244 base units, so dividing one by the other gives the direct grain per cubic foot-to-stone per gallon factor of 0.00000136408730159.
Simple example
1 gr/ft3 × 0.000001364087302 = 0.0000013641 st/gal
1 grain per cubic foot = 0.0000013641 stones per gallon.
Real-world example
1,000 gr/ft3 × 0.000001364087302 = 0.0013640873 st/gal
1,000 grains per cubic foot = 0.0013640873 stones per gallon.
Conversion table
| Grain per Cubic foot (gr/ft3) | Stone per Gallon (st/gal) |
|---|---|
| 0.1 gr/ft3 | 1.364087e-7 st/gal |
| 1 gr/ft3 | 0.0000013641 st/gal |
| 10 gr/ft3 | 0.0000136409 st/gal |
| 100 gr/ft3 | 0.0001364087 st/gal |
| 1,000 gr/ft3 | 0.0013640873 st/gal |
| 10,000 gr/ft3 | 0.013640873 st/gal |
Reverse conversion: Stone per Gallon to Grain per Cubic foot
0.0000013641 st/gal × 733090.9091 = 1.000009309 gr/ft3
0.0000013641 stones per gallon = 1.000009309 grains per cubic foot.
grains per cubic foot = stones per gallon × 733090.909091
For a page dedicated to this direction, see Stone per Gallon to Grain per Cubic foot.
Understanding the Grain per Cubic foot (gr/ft3)
Mass per volume density.
Understanding the Stone per Gallon (st/gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per gallon are in 1 grain per cubic foot?
1 grain per cubic foot equals 0.0000013641 stones per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert grain per cubic foot to stone per gallon?
Multiply the grain per cubic foot value by 0.000001364087302. The converter above does this instantly to whatever precision you set.
How do I convert stone per gallon back to grain per cubic foot?
Use the reverse factor: 1 stone per gallon equals 733,090.9091 grains per cubic foot. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per cubic foot?
Grain per Cubic foot (gr/ft3) is a unit of density.
What is a stone per gallon?
Stone per Gallon (st/gal) is a unit of density.
Is the grain per cubic foot to stone per gallon conversion exact?
Yes. Both grain per cubic foot and stone per gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.000001364087302 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.