Mass per volume density.
Grain per Cubic inches to Grains per Imperial gallon Converter — gr/in3 to gr/imp gal
Convert Grain per Cubic inch (gr/in3) to Grain per Imperial gallon (gr/imp gal) using the exact conversion factor (1 grain per cubic inch = 277.4194328 grain per imperial gallon). See the formula, worked examples, and conversion table.
Grain per Cubic inches to Grains 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 3.954272101 / 0.01425376752.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grain per Cubic inches to Grains per Imperial gallon
Grain per Cubic inch and Grain 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
grains per imperial gallon = grain per cubic inches × 277.419432792
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per cubic inch equals 3.95427210146 base units, and 1 grain per imperial gallon equals 0.0142537675233 base units, so dividing one by the other gives the direct grain per cubic inch-to-grain per imperial gallon factor of 277.419432792.
Simple example
1 gr/in3 × 277.4194328 = 277.4194328 gr/imp gal
1 grain per cubic inch = 277.4194328 grains per imperial gallon.
Real-world example
1,000 gr/in3 × 277.4194328 = 277,419.4328 gr/imp gal
1,000 grain per cubic inches = 277,419.4328 grains per imperial gallon.
Conversion table
| Grain per Cubic inch (gr/in3) | Grain per Imperial gallon (gr/imp gal) |
|---|---|
| 0.1 gr/in3 | 27.74194328 gr/imp gal |
| 1 gr/in3 | 277.4194328 gr/imp gal |
| 10 gr/in3 | 2,774.194328 gr/imp gal |
| 100 gr/in3 | 27,741.94328 gr/imp gal |
| 1,000 gr/in3 | 277,419.4328 gr/imp gal |
| 10,000 gr/in3 | 2,774,194.328 gr/imp gal |
Reverse conversion: Grain per Imperial gallon to Grain per Cubic inch
277.4194328 gr/imp gal × 0.00360465015 = 1 gr/in3
277.4194328 grains per imperial gallon = 1 grain per cubic inches.
grain per cubic inches = grains per imperial gallon × 0.00360465014991
For a page dedicated to this direction, see Grain per Imperial gallon to Grain per Cubic inch.
Understanding the Grain per Cubic inch (gr/in3)
Mass per volume density.
Understanding the Grain per Imperial gallon (gr/imp gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per imperial gallon are in 1 grain per cubic inch?
1 grain per cubic inch equals 277.4194328 grains per imperial gallon, using the exact defined conversion factor rather than an estimate.
How do I convert grain per cubic inch to grain per imperial gallon?
Multiply the grain per cubic inch value by 277.4194328. The converter above does this instantly to whatever precision you set.
How do I convert grain per imperial gallon back to grain per cubic inch?
Use the reverse factor: 1 grain per imperial gallon equals 0.0036046502 grain per cubic inches. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per cubic inch?
Grain per Cubic inch (gr/in3) is a unit of density.
What is a grain per imperial gallon?
Grain per Imperial gallon (gr/imp gal) is a unit of density.
Is the grain per cubic inch to grain per imperial gallon conversion exact?
Yes. Both grain per cubic inch and grain per imperial gallon are defined by fixed standards rather than physical artifacts, so the factor of 277.4194328 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.