Mass per volume density.
Pounds per Gallon to Grains per Cubic Centimeter Converter — lb/gal to gr/cm3
Convert Pound per Gallon (lb/gal) to Grain per Cubic Centimeter (gr/cm3) using the exact conversion factor (1 pound per gallon = 1.849204367 grain per cubic centimeter). See the formula, worked examples, conversion table, and common uses.
Pounds 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 119.8264273 / 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 Gallon to Grains per Cubic Centimeter
Pound 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. Pound per Gallon is most often used for us paint and coatings density specifications.
Formula
grains per cubic centimeter = pounds per gallon × 1.84920436651
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per gallon equals 119.826427317 base units, and 1 grain per cubic centimeter equals 64.79891 base units, so dividing one by the other gives the direct pound per gallon-to-grain per cubic centimeter factor of 1.84920436651.
Simple example
1 lb/gal × 1.849204367 = 1.849204367 gr/cm3
1 pound per gallon = 1.849204367 grains per cubic centimeter.
Real-world example
1,000 lb/gal × 1.849204367 = 1,849.204367 gr/cm3
1,000 pounds per gallon = 1,849.204367 grains per cubic centimeter.
Conversion table
| Pound per Gallon (lb/gal) | Grain per Cubic Centimeter (gr/cm3) |
|---|---|
| 0.1 lb/gal | 0.1849204367 gr/cm3 |
| 1 lb/gal | 1.849204367 gr/cm3 |
| 10 lb/gal | 18.49204367 gr/cm3 |
| 100 lb/gal | 184.9204367 gr/cm3 |
| 1,000 lb/gal | 1,849.204367 gr/cm3 |
| 10,000 lb/gal | 18,492.04367 gr/cm3 |
Reverse conversion: Grain per Cubic Centimeter to Pound per Gallon
1.849204367 gr/cm3 × 0.540773112 = 1 lb/gal
1.849204367 grains per cubic centimeter = 1 pounds per gallon.
pounds per gallon = grains per cubic centimeter × 0.540773112
For a page dedicated to this direction, see Grain per Cubic Centimeter to Pound per Gallon.
Understanding the Pound per Gallon
Pound per Gallon (lb/gal) measures density. The US customary unit for liquid density, based on the US gallon (231 cubic inches). It is classified as a US customary density unit.
Where it's used: United States (paint, fuel, and industrial liquid density specifications)
lb/gal vs. lb/ft³. Both are US customary density units; they're related through the real, fixed relationship between the US gallon and the cubic foot (1 cubic foot ≈ 7.48 US gallons), not a round conversion factor.
Uses of the Pound per Gallon today
- US paint and coatings density specifications
- US fuel and petroleum liquid density specs
- Industrial liquid handling and shipping weight calculations
Understanding the Grain per Cubic Centimeter (gr/cm3)
Mass per volume density.
Pound per Gallon — sources
- NIST Handbook 44 — General tables of units including US customary density measures.
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 gallon?
1 pound per gallon equals 1.849204367 grains per cubic centimeter, using the exact defined conversion factor rather than an estimate.
How do I convert pound per gallon to grain per cubic centimeter?
Multiply the pound per gallon value by 1.849204367. The converter above does this instantly to whatever precision you set.
How do I convert grain per cubic centimeter back to pound per gallon?
Use the reverse factor: 1 grain per cubic centimeter equals 0.540773112 pounds per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per gallon?
Pound per Gallon (lb/gal) measures density. The US customary unit for liquid density, based on the US gallon (231 cubic inches). It is classified as a US customary density unit.
What is a grain per cubic centimeter?
Grain per Cubic Centimeter (gr/cm3) is a unit of density.
Is the pound per gallon to grain per cubic centimeter conversion exact?
Yes. Both pound per gallon and grain per cubic centimeter are defined by fixed standards rather than physical artifacts, so the factor of 1.849204367 used above is exact to as many digits as you choose to display.
What is the difference between lb/gal vs. lb/ft³?
Both are US customary density units; they're related through the real, fixed relationship between the US gallon and the cubic foot (1 cubic foot ≈ 7.48 US gallons), not a round conversion factor.
Where is the pound per gallon still used today?
United States (paint, fuel, and industrial liquid density specifications)