Mass per volume density.
Ounces per Imperial gallon to Grains per Quart Converter — oz/imp gal to gr/qt
Convert Ounce per Imperial gallon (oz/imp gal) to Grain per Quart (gr/qt) using the exact conversion factor (1 ounce per imperial gallon = 91.07373894 grain per quart). See the formula, worked examples, and conversion table.
Ounces per Imperial gallon to Grains 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 6.236023291 / 0.06847224418.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Ounces per Imperial gallon to Grains per Quart
Ounce per Imperial gallon and Grain 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
grains per quart = ounces per imperial gallon × 91.0737389438
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per imperial gallon equals 6.23602329144 base units, and 1 grain per quart equals 0.0684722441811 base units, so dividing one by the other gives the direct ounce per imperial gallon-to-grain per quart factor of 91.0737389438.
Simple example
1 oz/imp gal × 91.07373894 = 91.07373894 gr/qt
1 ounce per imperial gallon = 91.07373894 grains per quart.
Real-world example
1,000 oz/imp gal × 91.07373894 = 91,073.73894 gr/qt
1,000 ounces per imperial gallon = 91,073.73894 grains per quart.
Conversion table
| Ounce per Imperial gallon (oz/imp gal) | Grain per Quart (gr/qt) |
|---|---|
| 0.1 oz/imp gal | 9.107373894 gr/qt |
| 1 oz/imp gal | 91.07373894 gr/qt |
| 10 oz/imp gal | 910.7373894 gr/qt |
| 100 oz/imp gal | 9,107.373894 gr/qt |
| 1,000 oz/imp gal | 91,073.73894 gr/qt |
| 10,000 oz/imp gal | 910,737.3894 gr/qt |
Reverse conversion: Grain per Quart to Ounce per Imperial gallon
91.07373894 gr/qt × 0.0109801136 = 1 oz/imp gal
91.07373894 grains per quart = 1 ounces per imperial gallon.
ounces per imperial gallon = grains per quart × 0.0109801136046
For a page dedicated to this direction, see Grain per Quart to Ounce per Imperial gallon.
Understanding the Ounce per Imperial gallon (oz/imp gal)
Mass per volume density.
Understanding the Grain per Quart (gr/qt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per quart are in 1 ounce per imperial gallon?
1 ounce per imperial gallon equals 91.07373894 grains per quart, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per imperial gallon to grain per quart?
Multiply the ounce per imperial gallon value by 91.07373894. The converter above does this instantly to whatever precision you set.
How do I convert grain per quart back to ounce per imperial gallon?
Use the reverse factor: 1 grain per quart equals 0.0109801136 ounces per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per imperial gallon?
Ounce per Imperial gallon (oz/imp gal) is a unit of density.
What is a grain per quart?
Grain per Quart (gr/qt) is a unit of density.
Is the ounce per imperial gallon to grain per quart conversion exact?
Yes. Both ounce per imperial gallon and grain per quart are defined by fixed standards rather than physical artifacts, so the factor of 91.07373894 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.