Mass per volume density.
Grains per Gallon to Pounds per Cubic Centimeter Converter — gr/gal to lb/cm3
Convert Grain per Gallon (gr/gal) to Pound per Cubic Centimeter (lb/cm3) using the exact conversion factor (1 grain per gallon = 3.773886e-8 pound per cubic centimeter). See the formula, worked examples, and conversion table.
Grains per Gallon to Pounds 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 0.01711806105 / 453592.37.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Gallon to Pounds per Cubic Centimeter
Grain per Gallon and Pound 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
pounds per cubic centimeter = grains per gallon × 3.773886e-8
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per gallon equals 0.0171180610453 base units, and 1 pound per cubic centimeter equals 453592.37 base units, so dividing one by the other gives the direct grain per gallon-to-pound per cubic centimeter factor of 3.773886e-8.
Simple example
1 gr/gal × 3.773886e-8 = 3.773886e-8 lb/cm3
1 grain per gallon = 3.773886e-8 pounds per cubic centimeter.
Real-world example
1,000 gr/gal × 3.773886e-8 = 0.0000377389 lb/cm3
1,000 grains per gallon = 0.0000377389 pounds per cubic centimeter.
Conversion table
| Grain per Gallon (gr/gal) | Pound per Cubic Centimeter (lb/cm3) |
|---|---|
| 0.1 gr/gal | 3.773886e-9 lb/cm3 |
| 1 gr/gal | 3.773886e-8 lb/cm3 |
| 10 gr/gal | 3.773886e-7 lb/cm3 |
| 100 gr/gal | 0.0000037739 lb/cm3 |
| 1,000 gr/gal | 0.0000377389 lb/cm3 |
| 10,000 gr/gal | 0.0003773886 lb/cm3 |
Reverse conversion: Pound per Cubic Centimeter to Grain per Gallon
3.773886e-8 lb/cm3 × 26497882.49 = 0.9999998775 gr/gal
3.773886e-8 pounds per cubic centimeter = 0.9999998775 grains per gallon.
grains per gallon = pounds per cubic centimeter × 26497882.488
For a page dedicated to this direction, see Pound per Cubic Centimeter to Grain per Gallon.
Understanding the Grain per Gallon (gr/gal)
Mass per volume density.
Understanding the Pound per Cubic Centimeter (lb/cm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per cubic centimeter are in 1 grain per gallon?
1 grain per gallon equals 3.773886e-8 pounds per cubic centimeter, using the exact defined conversion factor rather than an estimate.
How do I convert grain per gallon to pound per cubic centimeter?
Multiply the grain per gallon value by 3.773886e-8. The converter above does this instantly to whatever precision you set.
How do I convert pound per cubic centimeter back to grain per gallon?
Use the reverse factor: 1 pound per cubic centimeter equals 26,497,882.49 grains per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per gallon?
Grain per Gallon (gr/gal) is a unit of density.
What is a pound per cubic centimeter?
Pound per Cubic Centimeter (lb/cm3) is a unit of density.
Is the grain per gallon to pound per cubic centimeter conversion exact?
Yes. Both grain per gallon and pound per cubic centimeter are defined by fixed standards rather than physical artifacts, so the factor of 3.773886e-8 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.