Mass per volume density.
Grams per Cubic Centimeter to Pounds per Gallon Converter — g/cm3 to lb/gal
Convert Gram per Cubic Centimeter (g/cm3) to Pound per Gallon (lb/gal) using the exact conversion factor (1 gram per cubic centimeter = 8.345404452 pound per gallon). See the formula, worked examples, conversion table, unit comparison, and common uses.
Grams per Cubic Centimeter to Pounds per Gallon 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 1000 / 119.8264273.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grams per Cubic Centimeter to Pounds per Gallon
Gram per Cubic Centimeter and Pound per Gallon 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. Gram per Cubic Centimeter is typically associated with standard density unit in chemistry and materials science worldwide, while Pound per Gallon is typically associated with united States (paint, fuel, and industrial liquid density specifications).
Formula
pounds per gallon = grams per cubic centimeter × 8.34540445202
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per cubic centimeter equals 1000 base units, and 1 pound per gallon equals 119.826427317 base units, so dividing one by the other gives the direct gram per cubic centimeter-to-pound per gallon factor of 8.34540445202.
Simple example
1 g/cm3 × 8.345404452 = 8.345404452 lb/gal
1 gram per cubic centimeter = 8.345404452 pounds per gallon.
Real-world example
1,000 g/cm3 × 8.345404452 = 8,345.404452 lb/gal
1,000 grams per cubic centimeter = 8,345.404452 pounds per gallon.
Conversion table
| Gram per Cubic Centimeter (g/cm3) | Pound per Gallon (lb/gal) |
|---|---|
| 0.1 g/cm3 | 0.8345404452 lb/gal |
| 1 g/cm3 | 8.345404452 lb/gal |
| 10 g/cm3 | 83.45404452 lb/gal |
| 100 g/cm3 | 834.5404452 lb/gal |
| 1,000 g/cm3 | 8,345.404452 lb/gal |
| 10,000 g/cm3 | 83,454.04452 lb/gal |
Reverse conversion: Pound per Gallon to Gram per Cubic Centimeter
8.345404452 lb/gal × 0.1198264273 = 1 g/cm3
8.345404452 pounds per gallon = 1 grams per cubic centimeter.
grams per cubic centimeter = pounds per gallon × 0.119826427317
For a page dedicated to this direction, see Pound per Gallon to Gram per Cubic Centimeter.
Gram per Cubic Centimeter vs. Pound per Gallon
| Aspect | Gram per Cubic Centimeter | Pound per Gallon |
|---|---|---|
| Family | metric derived density unit | US customary density unit |
| Typical use | Material identification in chemistry and geology (mineral density tables) | US paint and coatings density specifications |
| Where it's used | Standard density unit in chemistry and materials science worldwide | United States (paint, fuel, and industrial liquid density specifications) |
Understanding the Gram per Cubic Centimeter
Gram per Cubic Centimeter (g/cm3) measures density. Numerically identical to kilograms per liter, since one cubic centimeter equals one milliliter — this is the form most commonly used in chemistry and materials-science textbooks. It is classified as a metric derived density unit.
Where it's used: Standard density unit in chemistry and materials science worldwide
Uses of the Gram per Cubic Centimeter today
- Material identification in chemistry and geology (mineral density tables)
- Materials science and engineering specifications
- Laboratory density measurements
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
Gram per Cubic Centimeter — sources
- BIPM SI Brochure — Gram and cubic centimeter as accepted units for expressing 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 pounds per gallon are in 1 gram per cubic centimeter?
1 gram per cubic centimeter equals 8.345404452 pounds per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert gram per cubic centimeter to pound per gallon?
Multiply the gram per cubic centimeter value by 8.345404452. The converter above does this instantly to whatever precision you set.
How do I convert pound per gallon back to gram per cubic centimeter?
Use the reverse factor: 1 pound per gallon equals 0.1198264273 grams per cubic centimeter. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per cubic centimeter?
Gram per Cubic Centimeter (g/cm3) measures density. Numerically identical to kilograms per liter, since one cubic centimeter equals one milliliter — this is the form most commonly used in chemistry and materials-science textbooks. It is classified as a metric derived density unit.
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.
Is the gram per cubic centimeter to pound per gallon conversion exact?
Yes. Both gram per cubic centimeter and pound per gallon are defined by fixed standards rather than physical artifacts, so the factor of 8.345404452 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 gram per cubic centimeter still used today?
Standard density unit in chemistry and materials science worldwide