Mass per volume density.
Gram per Cubic inches to Grains per Gallon Converter — g/in3 to gr/gal
Convert Gram per Cubic inch (g/in3) to Grain per Gallon (gr/gal) using the exact conversion factor (1 gram per cubic inch = 3,564.87478 grain per gallon). See the formula, worked examples, and conversion table.
Gram per Cubic inches to Grains per 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 61.02374409 / 0.01711806105.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Gram per Cubic inches to Grains per Gallon
Gram per Cubic inch and Grain per 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 gallon = gram per cubic inches × 3564.87477953
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per cubic inch equals 61.0237440947 base units, and 1 grain per gallon equals 0.0171180610453 base units, so dividing one by the other gives the direct gram per cubic inch-to-grain per gallon factor of 3564.87477953.
Simple example
1 g/in3 × 3564.87478 = 3,564.87478 gr/gal
1 gram per cubic inch = 3,564.87478 grains per gallon.
Real-world example
1,000 g/in3 × 3564.87478 = 3,564,874.78 gr/gal
1,000 gram per cubic inches = 3,564,874.78 grains per gallon.
Conversion table
| Gram per Cubic inch (g/in3) | Grain per Gallon (gr/gal) |
|---|---|
| 0.1 g/in3 | 356.487478 gr/gal |
| 1 g/in3 | 3,564.87478 gr/gal |
| 10 g/in3 | 35,648.7478 gr/gal |
| 100 g/in3 | 356,487.478 gr/gal |
| 1,000 g/in3 | 3,564,874.78 gr/gal |
| 10,000 g/in3 | 35,648,747.8 gr/gal |
Reverse conversion: Grain per Gallon to Gram per Cubic inch
1 gr/gal × 0.0002805147619 = 0.0002805148 g/in3
1 grain per gallon = 0.0002805148 gram per cubic inches.
gram per cubic inches = grains per gallon × 0.000280514761905
For a page dedicated to this direction, see Grain per Gallon to Gram per Cubic inch.
Understanding the Gram per Cubic inch (g/in3)
Mass per volume density.
Understanding the Grain per Gallon (gr/gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per gallon are in 1 gram per cubic inch?
1 gram per cubic inch equals 3,564.87478 grains per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert gram per cubic inch to grain per gallon?
Multiply the gram per cubic inch value by 3564.87478. The converter above does this instantly to whatever precision you set.
How do I convert grain per gallon back to gram per cubic inch?
Use the reverse factor: 1 grain per gallon equals 0.0002805148 gram per cubic inches. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per cubic inch?
Gram per Cubic inch (g/in3) is a unit of density.
What is a grain per gallon?
Grain per Gallon (gr/gal) is a unit of density.
Is the gram per cubic inch to grain per gallon conversion exact?
Yes. Both gram per cubic inch and grain per gallon are defined by fixed standards rather than physical artifacts, so the factor of 3564.87478 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.