⚗️ Gallons to Pounds Converter
Translate liquid volume (gallons) into weight (pounds) with ready-to-use fluid densities.
Select a fluid type or provide a custom pounds-per-gallon value to convert between gallons and pounds. Ideal for logistics planning, recipe scaling, and compliance reporting.
Standard reference for many calculations.
Volume of liquid in US gallons.
Resulting weight based on the chosen density.
Kilograms (kg)
37.8296
Liters (L)
37.8541
Density
8.34 lb/gal
How to Use This Calculator
Select or enter density
Pick a fluid from the list or turn on custom density and input pounds per gallon from your data sheet.
Enter volume or weight
Provide gallons to see pounds, or pounds to see the equivalent gallons. The other field updates automatically.
Review metric outputs
Use kilograms and liters when communicating with international partners or scientific teams.
Formula
Pounds = Gallons × Density (lb/gal)
Gallons = Pounds ÷ Density (lb/gal)
Density changes with temperature. Verify pounds-per-gallon values with supplier data when precision matters.
Use the formula breakdown to confirm the calculation logic or perform the conversion manually if needed.
Full Description
Converting between liquid volume and weight is essential for freight planning, recipe scaling, and environmental compliance. Because each fluid has a specific density, a gallon of fuel weighs differently than a gallon of water. This converter eliminates manual math by bundling typical densities for common liquids and supporting custom entries.
The tool also provides kilogram and liter equivalents, bridging imperial and metric systems without additional calculations. When working with hazardous materials or regulatory paperwork, always cross-check the density at the stated temperature in the data sheet.
Pair this converter with the Gallon Calculator to assess tank storage or with the kg to Gallons Converter to move between weight-based and volume-based inventory systems seamlessly.
Frequently Asked Questions
Does temperature affect pounds per gallon?
Yes. Liquids expand or contract with temperature, changing their density. Always use the density specified for the current temperature or include temperature corrections.
What if my fluid is not listed?
Enable the custom density option and enter the pounds-per-gallon value from your supplier or lab measurement.
Are these short pounds?
Yes. The converter uses pounds-mass (lbm) and US gallons. For SI units, refer to the kilogram and liter outputs.
Can I convert dry materials?
This tool is designed for liquids. For dry goods, use a bulk density (lb per cubic foot) calculator instead.