Mass per volume density.
Grains per Cup to Ounces per Quart Converter — gr/cup to oz/qt
Convert Grain per Cup (gr/cup) to Ounce per Quart (oz/qt) using the exact conversion factor (1 grain per cup = 0.0091428571 ounce per quart). See the formula, worked examples, and conversion table.
Grains per Cup to Ounces 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 0.2738889767 / 29.95660683.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Cup to Ounces per Quart
Grain per Cup and Ounce 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
ounces per quart = grains per cup × 0.00914285714286
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per cup equals 0.273888976724 base units, and 1 ounce per quart equals 29.9566068292 base units, so dividing one by the other gives the direct grain per cup-to-ounce per quart factor of 0.00914285714286.
Simple example
1 gr/cup × 0.009142857143 = 0.0091428571 oz/qt
1 grain per cup = 0.0091428571 ounces per quart.
Real-world example
1,000 gr/cup × 0.009142857143 = 9.142857143 oz/qt
1,000 grains per cup = 9.142857143 ounces per quart.
Conversion table
| Grain per Cup (gr/cup) | Ounce per Quart (oz/qt) |
|---|---|
| 0.1 gr/cup | 0.0009142857 oz/qt |
| 1 gr/cup | 0.0091428571 oz/qt |
| 10 gr/cup | 0.0914285714 oz/qt |
| 100 gr/cup | 0.9142857143 oz/qt |
| 1,000 gr/cup | 9.142857143 oz/qt |
| 10,000 gr/cup | 91.42857143 oz/qt |
Reverse conversion: Ounce per Quart to Grain per Cup
0.0091428571 oz/qt × 109.375 = 0.9999999953 gr/cup
0.0091428571 ounces per quart = 0.9999999953 grains per cup.
grains per cup = ounces per quart × 109.375
For a page dedicated to this direction, see Ounce per Quart to Grain per Cup.
Understanding the Grain per Cup (gr/cup)
Mass per volume density.
Understanding the Ounce per Quart (oz/qt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many ounces per quart are in 1 grain per cup?
1 grain per cup equals 0.0091428571 ounces per quart, using the exact defined conversion factor rather than an estimate.
How do I convert grain per cup to ounce per quart?
Multiply the grain per cup value by 0.009142857143. The converter above does this instantly to whatever precision you set.
How do I convert ounce per quart back to grain per cup?
Use the reverse factor: 1 ounce per quart equals 109.375 grains per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per cup?
Grain per Cup (gr/cup) is a unit of density.
What is a ounce per quart?
Ounce per Quart (oz/qt) is a unit of density.
Is the grain per cup to ounce per quart conversion exact?
Yes. Both grain per cup and ounce per quart are defined by fixed standards rather than physical artifacts, so the factor of 0.009142857143 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.