Mass per volume density.
Milligrams per Gallon to Grains per Cubic Centimeter Converter — mg/gal to gr/cm3
Convert Milligram per Gallon (mg/gal) to Grain per Cubic Centimeter (gr/cm3) using the exact conversion factor (1 milligram per gallon = 0.0000040768 grain per cubic centimeter). See the formula, worked examples, and conversion table.
Milligrams per Gallon to Grains per Cubic Centimeter 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 0.0002641720524 / 64.79891.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Milligrams per Gallon to Grains per Cubic Centimeter
Milligram per Gallon and Grain per Cubic Centimeter 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 centimeter = milligrams per gallon × 0.00000407679777882
This factor comes from each unit's defined relationship to the category's base unit: 1 milligram per gallon equals 0.000264172052358 base units, and 1 grain per cubic centimeter equals 64.79891 base units, so dividing one by the other gives the direct milligram per gallon-to-grain per cubic centimeter factor of 0.00000407679777882.
Simple example
1 mg/gal × 0.000004076797779 = 0.0000040768 gr/cm3
1 milligram per gallon = 0.0000040768 grains per cubic centimeter.
Real-world example
1,000 mg/gal × 0.000004076797779 = 0.0040767978 gr/cm3
1,000 milligrams per gallon = 0.0040767978 grains per cubic centimeter.
Conversion table
| Milligram per Gallon (mg/gal) | Grain per Cubic Centimeter (gr/cm3) |
|---|---|
| 0.1 mg/gal | 4.076798e-7 gr/cm3 |
| 1 mg/gal | 0.0000040768 gr/cm3 |
| 10 mg/gal | 0.000040768 gr/cm3 |
| 100 mg/gal | 0.0004076798 gr/cm3 |
| 1,000 mg/gal | 0.0040767978 gr/cm3 |
| 10,000 mg/gal | 0.0407679778 gr/cm3 |
Reverse conversion: Grain per Cubic Centimeter to Milligram per Gallon
0.0000040768 gr/cm3 × 245290.5575 = 1.000000545 mg/gal
0.0000040768 grains per cubic centimeter = 1.000000545 milligrams per gallon.
milligrams per gallon = grains per cubic centimeter × 245290.557504
For a page dedicated to this direction, see Grain per Cubic Centimeter to Milligram per Gallon.
Understanding the Milligram per Gallon (mg/gal)
Mass per volume density.
Understanding the Grain per Cubic Centimeter (gr/cm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per cubic centimeter are in 1 milligram per gallon?
1 milligram per gallon equals 0.0000040768 grains per cubic centimeter, using the exact defined conversion factor rather than an estimate.
How do I convert milligram per gallon to grain per cubic centimeter?
Multiply the milligram per gallon value by 0.000004076797779. The converter above does this instantly to whatever precision you set.
How do I convert grain per cubic centimeter back to milligram per gallon?
Use the reverse factor: 1 grain per cubic centimeter equals 245,290.5575 milligrams per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a milligram per gallon?
Milligram per Gallon (mg/gal) is a unit of density.
What is a grain per cubic centimeter?
Grain per Cubic Centimeter (gr/cm3) is a unit of density.
Is the milligram per gallon to grain per cubic centimeter conversion exact?
Yes. Both milligram per gallon and grain per cubic centimeter are defined by fixed standards rather than physical artifacts, so the factor of 0.000004076797779 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.