How many gallons is 1 lb of milk?
How many gallons is 1 lb of milk?
Answer
The density of milk is 1.03 kg/L (cow milk at 15.6 °C; whole milk 1.030–1.031), so one US gallon of it weighs 8.6 lbs.
In imperial (UK) gallons of 4.54609 L instead of 3.785411784 L, 1 lb of milk would be 0.0969 UK gallons.
How the volume of 1 lb of milk was worked out
A US gallon is exactly 3.785411784 liters and a pound is exactly 0.45359237 kilograms: the weight becomes kilograms, and the density turns kilograms into liters — and the liters become gallons.
1 lb × 0.45359237 ÷ (1.03 kg/L × 3.785411784)
≈0.12 US gallons
(zero point one two gallons)
The density comes from FAO/INFOODS Density Database v2.0: cow milk at 15.6 °C; whole milk 1.030–1.031.
The other way round: what one US gallon of this weighs
This page starts from a weight and answers in gallons. The opposite question — how much a given number of gallons weighs — is what the gallons to pounds calculator is for, and in metric units the same question is liters to kilograms. All of them read one density table, so their numbers agree.
For milk the density is 1.03 kg/L, so 1 lb is 0.12 gallons — and one US gallon of it weighs 8.6 lbs.
If the substance is not known in advance, start from how many gallons 1 lb is — the same weight across every substance at once.
Related Calculations
See Also
- Gallons to Pounds - How much a gallon of water, milk, gasoline, diesel, oil or propane weighs in pounds — by density
- Pounds to Liters - How many liters a pound of water, milk, oil or propane takes — by density
- Kilograms to Liters - How many liters are in a kilogram of water, honey, gasoline, sand and other substances — by density
- Liters to Gallons - Convert Liters to US Gallons
- Lbs to Kg - Convert Pounds to Kilograms

How many gallons 1 lb of each substance takes
| Substance | Volume of 1 lb | One US gallon weighs | Density, kg/L |
|---|---|---|---|
| Milk | 0.12 gallons | 8.6 lbs | 1.03 |
| Propane | 0.24 gallons | 4.24 lbs | 0.5076 |
| Vegetable oil | 0.13 gallons | 7.68 lbs | 0.92 |
| Water | 0.12 gallons | 8.33 lbs | 0.998 |