⚖️ Gallons to Pounds Converter
Convert a volume of liquid in US gallons into pounds and kilograms based on the density of common liquids.
Why weight depends on the liquid
Gallons measure volume, not weight, so the same one-gallon container can weigh different amounts depending on what’s inside. A gallon of water weighs about 8.34 pounds, while a gallon of gasoline weighs less (around 6.1 pounds) because it is less dense.
How this calculator works
Enter the volume in US gallons and choose the liquid type. The calculator multiplies your volume by that liquid’s typical weight-per-gallon value (based on standard density at normal temperature) to estimate total weight in pounds, then converts to kilograms and ounces.
- Water: ~8.34 lb/gallon
- Milk: ~8.6 lb/gallon
- Gasoline: ~6.1 lb/gallon
- Honey: ~9.34 lb/gallon (highly viscous, denser than water)
These are typical values at room temperature; actual density can vary slightly with temperature and exact product composition. For precise shipping or engineering calculations, use the manufacturer’s specific gravity data.