Mass per volume density.
Grains per Cup to Ounces per Imperial gallon Converter — gr/cup to oz/imp gal
Convert Grain per Cup (gr/cup) to Ounce per Imperial gallon (oz/imp gal) using the exact conversion factor (1 grain per cup = 0.0439204544 ounce per imperial gallon). See the formula, worked examples, and conversion table.
Grains per Cup to Ounces per Imperial 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 0.2738889767 / 6.236023291.
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 Imperial gallon
Grain per Cup and Ounce per Imperial 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
ounces per imperial gallon = grains per cup × 0.0439204544185
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 imperial gallon equals 6.23602329144 base units, so dividing one by the other gives the direct grain per cup-to-ounce per imperial gallon factor of 0.0439204544185.
Simple example
1 gr/cup × 0.04392045442 = 0.0439204544 oz/imp gal
1 grain per cup = 0.0439204544 ounces per imperial gallon.
Real-world example
1,000 gr/cup × 0.04392045442 = 43.92045442 oz/imp gal
1,000 grains per cup = 43.92045442 ounces per imperial gallon.
Conversion table
| Grain per Cup (gr/cup) | Ounce per Imperial gallon (oz/imp gal) |
|---|---|
| 0.1 gr/cup | 0.0043920454 oz/imp gal |
| 1 gr/cup | 0.0439204544 oz/imp gal |
| 10 gr/cup | 0.4392045442 oz/imp gal |
| 100 gr/cup | 4.392045442 oz/imp gal |
| 1,000 gr/cup | 43.92045442 oz/imp gal |
| 10,000 gr/cup | 439.2045442 oz/imp gal |
Reverse conversion: Ounce per Imperial gallon to Grain per Cup
0.0439204544 oz/imp gal × 22.76843474 = 0.9999999996 gr/cup
0.0439204544 ounces per imperial gallon = 0.9999999996 grains per cup.
grains per cup = ounces per imperial gallon × 22.7684347359
For a page dedicated to this direction, see Ounce per Imperial gallon to Grain per Cup.
Understanding the Grain per Cup (gr/cup)
Mass per volume density.
Understanding the Ounce per Imperial gallon (oz/imp gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many ounces per imperial gallon are in 1 grain per cup?
1 grain per cup equals 0.0439204544 ounces per imperial gallon, using the exact defined conversion factor rather than an estimate.
How do I convert grain per cup to ounce per imperial gallon?
Multiply the grain per cup value by 0.04392045442. The converter above does this instantly to whatever precision you set.
How do I convert ounce per imperial gallon back to grain per cup?
Use the reverse factor: 1 ounce per imperial gallon equals 22.76843474 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 imperial gallon?
Ounce per Imperial gallon (oz/imp gal) is a unit of density.
Is the grain per cup to ounce per imperial gallon conversion exact?
Yes. Both grain per cup and ounce per imperial gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.04392045442 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.