Gallons to Pounds Converter
There is no single answer for gallons to pounds, because gallons measure volume and pounds measure weight. The answer depends on the material: 1 gallon of water is 8.345 lb. A US gallon of water weighs 8.34 pounds at room temperature.
Type a number and the answer appears straight away.
1 gallon of water =8.345 lb
- Density used
- 1 g/mL
Densities are typical values. Moisture and compaction change the real weight, so allow a margin when ordering.
| Material | 1 gallon in pounds |
|---|---|
| Water | 8.345 |
| Seawater | 8.554 |
| Milk | 8.637 |
| Gasoline | 6.217 |
| Diesel | 7.094 |
| Propane (liquid) | 4.114 |
| Vegetable oil | 7.678 |
| Honey | 11.85 |
The math behind it: Gallons to Pounds
weight = volume x density
Choose a material above and the calculator applies its typical bulk density. Wet or compacted material weighs more than dry, loose material, so treat the result as an estimate.
1 gallon in pounds, by material
| Material | Pounds (lb) |
|---|---|
| Water | 8.345 |
| Seawater | 8.554 |
| Milk | 8.637 |
| Gasoline | 6.217 |
| Diesel | 7.094 |
| Propane (liquid) | 4.114 |
| Vegetable oil | 7.678 |
| Honey | 11.85 |
Common questions
How many pounds are in 1 gallon?
It depends on the material. For water it is 8.345 lb; for honey it is 11.85 lb. The chart above lists every material we cover.
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