How do I convert gallons to lbs?
Type a value in either box and pick the ingredient, and the answer shows it in the other unit as you type.
- Pounds (lb)
- 8.345196
1 gal = 8.345196 lb (Water at 4 °C, 0.999975 kg per L).
Pounds (lb): 8.345196. 1 gal = 8.345196 lb (Water at 4 °C, 0.999975 kg per L).
Pounds (lb) by gallons (gal)
How to calculate
Converts gallons to pounds and back for water, milk, flour, sugar, and other ingredients, from what each one weighs per liter.
Example with the default inputs (Gallons (gal) 1, Ingredient Water at 4 °C, 0.999975 kg per L): 1 gal = 8.345196 lb (Water at 4 °C, 0.999975 kg per L).
Formula: lbs = gallons × 3.785411784 × 0.999975 ÷ 0.45359237, where kilograms per liter depends on the ingredient (water at 4 °C: 0.999975 kg)
- Grams per cup are USDA FoodData Central (SR Legacy) portion weights for one level US cup (8 US fluid ounces): all-purpose flour 125 g (FDC 168894), granulated sugar 200 g (FDC 169655), brown sugar, packed 220 g (FDC 168833), powdered sugar, unsifted 120 g (FDC 169656), whole milk 244 g (FDC 171265), butter 227 g (FDC 173410), olive oil 216 g (FDC 171413), honey 339 g (FDC 169640), white rice, uncooked 185 g (FDC 169756).
- Water is pure water: 0.999975 kg per liter at 4 °C and 0.998207 kg per liter at 20 °C, from the Tanaka et al. (2001) density formula.
- Other ingredients use their USDA cup weight: kilograms per liter = grams per cup ÷ 236.5882365.
- Exact on the typed decimals: at most 6 decimal places (6 significant digits below 0.0001), rounded half up; an answer of 1 billion or more shows at most 15 significant digits.
Worked examples
Each example is checked against the calculator on every build.
- Gallons (gal) 1, Ingredient Water at 4 °C, 0.999975 kg per L gives Pounds (lb) 8.345196.Source: Density of pure water from Tanaka et al. (2001), Metrologia 38, 301: 999.9749 kg/m³ at 4 °C, 998.2067 kg/m³ at 20 °C, as 0.999975 kg per liter
- Gallons (gal) 1, Ingredient Whole milk, 1.03133 kg per L gives Pounds (lb) 8.606847.Source: USDA FoodData Central SR Legacy 171265: 1 cup = 244 g
Other questions people ask
How many pounds are in a gallon?
It depends on the ingredient, because a volume does not fix the weight. 1 gal is about, in pounds: all-purpose flour 4.409; granulated sugar 7.055; brown sugar, packed 7.76; powdered sugar, unsifted 4.233; water at 4 °C 8.345; water at 20 °C 8.33; whole milk 8.607; butter 8.007; olive oil 7.619; honey 11.96; white rice, uncooked 6.526.
How do I convert gallons to lbs?
lbs = gallons × 3.785411784 × 0.999975 ÷ 0.45359237, where kilograms per liter depends on the ingredient (water at 4 °C: 0.999975 kg). For example, 1 gal of water at 4 °C is 8.345196 lbs.
Does a liter of water weigh 1 kg?
Almost. Pure water weighs 0.999975 kg per liter at 4 °C, where it is densest, and 0.998207 kg per liter at 20 °C (Tanaka et al. 2001). Other liquids differ more: a liter of whole milk weighs about 1.03 kg and a liter of olive oil about 0.91 kg (USDA).
How much does a gallon of water weigh?
8.345196 lb at 4 °C, where water is densest, or 8.330441 lb at 20 °C: a US gallon is 3.785411784 L, and water weighs 0.999975 kg per liter at 4 °C and 0.998207 kg at 20 °C (Tanaka et al. 2001).
How much does a gallon of milk weigh?
8.606847 lb: USDA lists a cup of whole milk at 244 g, and a gallon is 16 cups, 3,904 g.