Mass per volume density.
Grams per Gallon to Grains per Cubic Meter Converter — g/gal to gr/m3
Convert Gram per Gallon (g/gal) to Grain per Cubic Meter (gr/m3) using the exact conversion factor (1 gram per gallon = 4,076.797779 grain per cubic meter). See the formula, worked examples, and conversion table.
Grams per Gallon to Grains per Cubic Meter 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 0.2641720524 / 6.479891e-5.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grams per Gallon to Grains per Cubic Meter
Gram per Gallon and Grain per Cubic Meter 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 cubic meter = grams per gallon × 4076.79777882
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per gallon equals 0.264172052358 base units, and 1 grain per cubic meter equals 0.00006479891 base units, so dividing one by the other gives the direct gram per gallon-to-grain per cubic meter factor of 4076.79777882.
Simple example
1 g/gal × 4076.797779 = 4,076.797779 gr/m3
1 gram per gallon = 4,076.797779 grains per cubic meter.
Real-world example
1,000 g/gal × 4076.797779 = 4,076,797.779 gr/m3
1,000 grams per gallon = 4,076,797.779 grains per cubic meter.
Conversion table
| Gram per Gallon (g/gal) | Grain per Cubic Meter (gr/m3) |
|---|---|
| 0.1 g/gal | 407.6797779 gr/m3 |
| 1 g/gal | 4,076.797779 gr/m3 |
| 10 g/gal | 40,767.97779 gr/m3 |
| 100 g/gal | 407,679.7779 gr/m3 |
| 1,000 g/gal | 4,076,797.779 gr/m3 |
| 10,000 g/gal | 40,767,977.79 gr/m3 |
Reverse conversion: Grain per Cubic Meter to Gram per Gallon
1 gr/m3 × 0.0002452905575 = 0.0002452906 g/gal
1 grain per cubic meter = 0.0002452906 grams per gallon.
grams per gallon = grains per cubic meter × 0.000245290557504
For a page dedicated to this direction, see Grain per Cubic Meter to Gram per Gallon.
Understanding the Gram per Gallon (g/gal)
Mass per volume density.
Understanding the Grain per Cubic Meter (gr/m3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per cubic meter are in 1 gram per gallon?
1 gram per gallon equals 4,076.797779 grains per cubic meter, using the exact defined conversion factor rather than an estimate.
How do I convert gram per gallon to grain per cubic meter?
Multiply the gram per gallon value by 4076.797779. The converter above does this instantly to whatever precision you set.
How do I convert grain per cubic meter back to gram per gallon?
Use the reverse factor: 1 grain per cubic meter equals 0.0002452906 grams per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per gallon?
Gram per Gallon (g/gal) is a unit of density.
What is a grain per cubic meter?
Grain per Cubic Meter (gr/m3) is a unit of density.
Is the gram per gallon to grain per cubic meter conversion exact?
Yes. Both gram per gallon and grain per cubic meter are defined by fixed standards rather than physical artifacts, so the factor of 4076.797779 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.