Mass per volume density.
Pounds per Gallon to Centigrams per Imperial gallon Converter — lb/gal to cg/imp gal
Convert Pound per Gallon (lb/gal) to Centigram per Imperial gallon (cg/imp gal) using the exact conversion factor (1 pound per gallon = 54,474.1723 centigram per imperial gallon). See the formula, worked examples, conversion table, and common uses.
Pounds per Gallon to Centigrams per Imperial 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 119.8264273 / 0.002199692483.
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 Centigrams per Imperial gallon
Pound per Gallon and Centigram per Imperial 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. Pound per Gallon is most often used for us paint and coatings density specifications.
Formula
centigrams per imperial gallon = pounds per gallon × 54474.1722961
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 centigram per imperial gallon equals 0.00219969248299 base units, so dividing one by the other gives the direct pound per gallon-to-centigram per imperial gallon factor of 54474.1722961.
Simple example
1 lb/gal × 54474.1723 = 54,474.1723 cg/imp gal
1 pound per gallon = 54,474.1723 centigrams per imperial gallon.
Real-world example
1,000 lb/gal × 54474.1723 = 54,474,172.3 cg/imp gal
1,000 pounds per gallon = 54,474,172.3 centigrams per imperial gallon.
Conversion table
| Pound per Gallon (lb/gal) | Centigram per Imperial gallon (cg/imp gal) |
|---|---|
| 0.1 lb/gal | 5,447.41723 cg/imp gal |
| 1 lb/gal | 54,474.1723 cg/imp gal |
| 10 lb/gal | 544,741.723 cg/imp gal |
| 100 lb/gal | 5,447,417.23 cg/imp gal |
| 1,000 lb/gal | 54,474,172.3 cg/imp gal |
| 10,000 lb/gal | 544,741,723 cg/imp gal |
Reverse conversion: Centigram per Imperial gallon to Pound per Gallon
1 cg/imp gal × 0.00001835732344 = 0.0000183573 lb/gal
1 centigram per imperial gallon = 0.0000183573 pounds per gallon.
pounds per gallon = centigrams per imperial gallon × 0.0000183573234406
For a page dedicated to this direction, see Centigram per Imperial gallon 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 Centigram per Imperial gallon (cg/imp gal)
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 centigrams per imperial gallon are in 1 pound per gallon?
1 pound per gallon equals 54,474.1723 centigrams per imperial gallon, using the exact defined conversion factor rather than an estimate.
How do I convert pound per gallon to centigram per imperial gallon?
Multiply the pound per gallon value by 54474.1723. The converter above does this instantly to whatever precision you set.
How do I convert centigram per imperial gallon back to pound per gallon?
Use the reverse factor: 1 centigram per imperial gallon equals 0.0000183573 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 centigram per imperial gallon?
Centigram per Imperial gallon (cg/imp gal) is a unit of density.
Is the pound per gallon to centigram per imperial gallon conversion exact?
Yes. Both pound per gallon and centigram per imperial gallon are defined by fixed standards rather than physical artifacts, so the factor of 54474.1723 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)