Mass per volume density.
Grains per Imperial gallon to Stones per Quart Converter — gr/imp gal to st/qt
Convert Grain per Imperial gallon (gr/imp gal) to Stone per Quart (st/qt) using the exact conversion factor (1 grain per imperial gallon = 0.0000021242 stone per quart). See the formula, worked examples, and conversion table.
Grains per Imperial gallon to Stones per Quart 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 0.01425376752 / 6710.27993.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Imperial gallon to Stones per Quart
Grain per Imperial gallon and Stone per Quart 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 quart = grains per imperial gallon × 0.00000212416883834
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per imperial gallon equals 0.0142537675233 base units, and 1 stone per quart equals 6710.27992975 base units, so dividing one by the other gives the direct grain per imperial gallon-to-stone per quart factor of 0.00000212416883834.
Simple example
1 gr/imp gal × 0.000002124168838 = 0.0000021242 st/qt
1 grain per imperial gallon = 0.0000021242 stones per quart.
Real-world example
1,000 gr/imp gal × 0.000002124168838 = 0.0021241688 st/qt
1,000 grains per imperial gallon = 0.0021241688 stones per quart.
Conversion table
| Grain per Imperial gallon (gr/imp gal) | Stone per Quart (st/qt) |
|---|---|
| 0.1 gr/imp gal | 2.124169e-7 st/qt |
| 1 gr/imp gal | 0.0000021242 st/qt |
| 10 gr/imp gal | 0.0000212417 st/qt |
| 100 gr/imp gal | 0.0002124169 st/qt |
| 1,000 gr/imp gal | 0.0021241688 st/qt |
| 10,000 gr/imp gal | 0.0212416884 st/qt |
Reverse conversion: Stone per Quart to Grain per Imperial gallon
0.0000021242 st/qt × 470772.3708 = 1.00001467 gr/imp gal
0.0000021242 stones per quart = 1.00001467 grains per imperial gallon.
grains per imperial gallon = stones per quart × 470772.370798
For a page dedicated to this direction, see Stone per Quart to Grain per Imperial gallon.
Understanding the Grain per Imperial gallon (gr/imp gal)
Mass per volume density.
Understanding the Stone per Quart (st/qt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per quart are in 1 grain per imperial gallon?
1 grain per imperial gallon equals 0.0000021242 stones per quart, using the exact defined conversion factor rather than an estimate.
How do I convert grain per imperial gallon to stone per quart?
Multiply the grain per imperial gallon value by 0.000002124168838. The converter above does this instantly to whatever precision you set.
How do I convert stone per quart back to grain per imperial gallon?
Use the reverse factor: 1 stone per quart equals 470,772.3708 grains per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per imperial gallon?
Grain per Imperial gallon (gr/imp gal) is a unit of density.
What is a stone per quart?
Stone per Quart (st/qt) is a unit of density.
Is the grain per imperial gallon to stone per quart conversion exact?
Yes. Both grain per imperial gallon and stone per quart are defined by fixed standards rather than physical artifacts, so the factor of 0.000002124168838 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.