Mass per volume density.
Pounds per Gallon to Hectograms per Fluid ounce Converter — lb/gal to hg/fl oz
Convert Pound per Gallon (lb/gal) to Hectogram per Fluid ounce (hg/fl oz) using the exact conversion factor (1 pound per gallon = 0.0354369039 hectogram per fluid ounce). See the formula, worked examples, conversion table, and common uses.
Pounds per Gallon to Hectograms per Fluid ounce 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 / 3381.40227.
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 Hectograms per Fluid ounce
Pound per Gallon and Hectogram per Fluid ounce 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
hectograms per fluid ounce = pounds per gallon × 0.0354369039062
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 hectogram per fluid ounce equals 3381.40227018 base units, so dividing one by the other gives the direct pound per gallon-to-hectogram per fluid ounce factor of 0.0354369039062.
Simple example
1 lb/gal × 0.03543690391 = 0.0354369039 hg/fl oz
1 pound per gallon = 0.0354369039 hectograms per fluid ounce.
Real-world example
1,000 lb/gal × 0.03543690391 = 35.43690391 hg/fl oz
1,000 pounds per gallon = 35.43690391 hectograms per fluid ounce.
Conversion table
| Pound per Gallon (lb/gal) | Hectogram per Fluid ounce (hg/fl oz) |
|---|---|
| 0.1 lb/gal | 0.0035436904 hg/fl oz |
| 1 lb/gal | 0.0354369039 hg/fl oz |
| 10 lb/gal | 0.3543690391 hg/fl oz |
| 100 lb/gal | 3.543690391 hg/fl oz |
| 1,000 lb/gal | 35.43690391 hg/fl oz |
| 10,000 lb/gal | 354.3690391 hg/fl oz |
Reverse conversion: Hectogram per Fluid ounce to Pound per Gallon
0.0354369039 hg/fl oz × 28.21916956 = 0.9999999998 lb/gal
0.0354369039 hectograms per fluid ounce = 0.9999999998 pounds per gallon.
pounds per gallon = hectograms per fluid ounce × 28.2191695597
For a page dedicated to this direction, see Hectogram per Fluid ounce 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 Hectogram per Fluid ounce (hg/fl oz)
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 hectograms per fluid ounce are in 1 pound per gallon?
1 pound per gallon equals 0.0354369039 hectograms per fluid ounce, using the exact defined conversion factor rather than an estimate.
How do I convert pound per gallon to hectogram per fluid ounce?
Multiply the pound per gallon value by 0.03543690391. The converter above does this instantly to whatever precision you set.
How do I convert hectogram per fluid ounce back to pound per gallon?
Use the reverse factor: 1 hectogram per fluid ounce equals 28.21916956 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 hectogram per fluid ounce?
Hectogram per Fluid ounce (hg/fl oz) is a unit of density.
Is the pound per gallon to hectogram per fluid ounce conversion exact?
Yes. Both pound per gallon and hectogram per fluid ounce are defined by fixed standards rather than physical artifacts, so the factor of 0.03543690391 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)