Mass per volume density.
Pounds per Imperial gallon to Grains per Cubic Centimeter Converter — lb/imp gal to gr/cm3
Convert Pound per Imperial gallon (lb/imp gal) to Grain per Cubic Centimeter (gr/cm3) using the exact conversion factor (1 pound per imperial gallon = 1.539784738 grain per cubic centimeter). See the formula, worked examples, and conversion table.
Pounds per Imperial 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 99.77637266 / 64.79891.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Imperial gallon to Grains per Cubic Centimeter
Pound per Imperial 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 = pounds per imperial gallon × 1.53978473809
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per imperial gallon equals 99.7763726631 base units, and 1 grain per cubic centimeter equals 64.79891 base units, so dividing one by the other gives the direct pound per imperial gallon-to-grain per cubic centimeter factor of 1.53978473809.
Simple example
1 lb/imp gal × 1.539784738 = 1.539784738 gr/cm3
1 pound per imperial gallon = 1.539784738 grains per cubic centimeter.
Real-world example
1,000 lb/imp gal × 1.539784738 = 1,539.784738 gr/cm3
1,000 pounds per imperial gallon = 1,539.784738 grains per cubic centimeter.
Conversion table
| Pound per Imperial gallon (lb/imp gal) | Grain per Cubic Centimeter (gr/cm3) |
|---|---|
| 0.1 lb/imp gal | 0.1539784738 gr/cm3 |
| 1 lb/imp gal | 1.539784738 gr/cm3 |
| 10 lb/imp gal | 15.39784738 gr/cm3 |
| 100 lb/imp gal | 153.9784738 gr/cm3 |
| 1,000 lb/imp gal | 1,539.784738 gr/cm3 |
| 10,000 lb/imp gal | 15,397.84738 gr/cm3 |
Reverse conversion: Grain per Cubic Centimeter to Pound per Imperial gallon
1.539784738 gr/cm3 × 0.6494414286 = 0.9999999999 lb/imp gal
1.539784738 grains per cubic centimeter = 0.9999999999 pounds per imperial gallon.
pounds per imperial gallon = grains per cubic centimeter × 0.649441428571
For a page dedicated to this direction, see Grain per Cubic Centimeter to Pound per Imperial gallon.
Understanding the Pound per Imperial gallon (lb/imp 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 pound per imperial gallon?
1 pound per imperial gallon equals 1.539784738 grains per cubic centimeter, using the exact defined conversion factor rather than an estimate.
How do I convert pound per imperial gallon to grain per cubic centimeter?
Multiply the pound per imperial gallon value by 1.539784738. The converter above does this instantly to whatever precision you set.
How do I convert grain per cubic centimeter back to pound per imperial gallon?
Use the reverse factor: 1 grain per cubic centimeter equals 0.6494414286 pounds per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per imperial gallon?
Pound per Imperial gallon (lb/imp 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 pound per imperial gallon to grain per cubic centimeter conversion exact?
Yes. Both pound per imperial gallon and grain per cubic centimeter are defined by fixed standards rather than physical artifacts, so the factor of 1.539784738 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.