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How much does A Gallon of Water weigh?
3.78 kg (8.33 lb)
per gallon
A Gallon of Water weighs about 3.78 kg (8.33 lb) per gallon. About the same as a small bag of flour.
| Weight (metric) | 3.78 kg |
| Weight (imperial) | 8.33 lb |
| Measured per | gallon |
| Category | Food & Drink |
| Compares to | About the same as a small bag of flour. |
⚖️ Weight calculator
About the weight of a gallon of water
A US gallon of water weighs 3.78 kg (8.34 lb); the UK gallon is larger at about 4.55 kg.
Cold water is marginally heavier than warm.
Frequently asked questions
- How much does a gallon of water weigh?
- A Gallon of Water weighs about 3.78 kg (8.33 lb) per gallon. A US gallon of water weighs 3.78 kg (8.34 lb); the UK gallon is larger at about 4.55 kg.
- How much do 10 of them weigh?
- Ten would weigh roughly 37.8 kg (83.3 lb).
- What does that compare to?
- About the same as a small bag of flour.