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Easy Gallons to Pounds Converter and Calculator

Convert Gallon to lbs or lbs to Gallons

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Gallons to Pounds Converter


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Formula for Gallon and Pounds Conversion

How many gallon to lbs?

To convert gallons to pounds of an item, multiply gallons by density of the item

pounds = gallons × density

The density of a substance is its weight per unit of volume. For example, the density of water is 8.34 pounds per gallon.

For example, 5 gallons of water in lbs is equal to 5 * 8.34 = 41.7 lbs

How many lbs to gallons?

To convert from pounds to gallons, divide pounds by density of the item

gallons = pounds / density

For example, 100 pounds of water in gallons is equal to 100 / 8.34 = 12 gallons

Here are a few examples for 1 gallon of some common substances:

  • Water: 1 gallon of water = 8.33 pounds
  • Milk: 1 gallon of milk = 8.6 pounds
  • Gasoline: 1 gallon of gasoline = 6.7 pounds
  • Oil: 1 gallon of oil = 7.2 pounds

What is a Gallon?

Essential Icon
  • The gallon is a unit of volume used to measure liquids.
  • The US Gallon is equal to 3.785 liters or 231 cubic inches. Liter is the SI unit to measure volume, Gallon is not an SI Unit.
  • The abbreviation used for gallon is 'gal'
  • Gallons are the largest measures in the countries that follow imperial / customary system
  • There are 2 types of gallons - US Gallon (customary system) and Imperial Gallon (UK) The Imperial Gallon is a larger unit and it is 4.54 liters or 277 cubic inches.
  • Gallons are used to measure gasoline, oil, milk, paint and any large volumes of liquids.

What is a Pound?

Essential Icon
  • The pound is a unit of mass used to measure both solids and liquids.
  • The abbreviation used for pound is 'lb'
  • The pound is a bigger unit than kg. A pound is equal to 0.45 kilograms. The pound is not an SI unit
  • Pounds are commonly used in the United States, Canada, and the United Kingdom and they are the largest measures in their respective systems
  • The gallon and pound are related to each other through the density of the item. One gallon of water weighs 8.33 pounds.
  • Pounds are used to measure weight, such as the weight of a person or any object.

How is a Gallon related to a Pound?

  • Gallon is a unit of Volume and Pound is a unit of mass. They are not directly related
  • They are indirectly related by Density
  • Density of any item is Mass / Volume
  • Therefore to find the Mass of an item, multiply Volume with Density. To find Volume given the mass, divide Mass by Density
  • Density is usually specified in kg/m3 or in gms/cc. In this case, we have to convert it into lbs/gallon and apply that conversion factor
  • Converting gallons to pounds is useful for determining the weight of a specific volume of liquid. Fuel, Engine Oil, chemicals, raw materials in industries are typically sold in gallon containers and it's useful to know the equivalent weight in pounds.

Weight of 1 Gallon of Different substances

The weight of 1 gallon of different substances is dependent on the density of the substance.
The weight of 1 gallon of any item is 1 x density in lbs/gal.

1 Gallon Weight (lbs) Density (lbs/gal) Density (gms/cc)
Water 8.345 lbs 8.345 1
Milk 8.595 lbs 8.595 1.03
Propane 4.11 lbs 4.11 4.2
Ethanol 6.53 lbs 6.53 0.789
Methanol 6.6 lbs 6.6 0.791
Alcohol 6.58 lbs 6.58 2.2
Cooking Oil 7.343 lbs 7.343 1.4
Engine Oil 7.39 lbs 7.39 0.74
Gasolene 6.3 lbs 6.3 0.68
Kerosene 6.82 lbs 6.82 0.810
Molasse 11.46 lbs 11.46 1.42
Liquid Nitrogen 3.6 lbs 3.6 0.56
Acetone 6.6 lbs 6.6 0.7900
Dog Food 3.75 lbs 3.75 1.031
Fuel 7.43 lbs 7.43 0.89
Soybean Oil 11.6 lbs 11.6 0.917
Peanut Oil 7.6 lbs 7.6 0.912
Sulfuric Acid 15.35 lbs 15.35 1.9
Diesel 7.094 lbs 7.094 0.825
Petrol 7.39 lbs 7.39 0.74
Biodiesel 7.35 lbs 7.35 0.75

Gallons to Pounds Table for Water

Conversion Table Icon
Gallon (gal) Pound (lbs)
1 gal 8.345 lbs
2 gal 16.690 lbs
2.5 gal 20.863 lbs
3 gal 25.036 lbs
4 gal 33.381 lbs
5 gal 41.727 lbs
6 gal 50.072 lbs
7 gal 58.417 lbs
8 gal 66.763 lbs
9 gal 75.108 lbs
10 gal 83.454 lbs
15 gal 125.181 lbs
16 gal 133.526 lbs
20 gal 166.908 lbs
30 gal 250.362 lbs
55 gal 458.99 lbs
100 gal 834.540 lbs
120 gal 1001.44 lbs
200 gal 1669.08 lbs
500 gal 4172.70 lbs
1000 gal 8345.40 lbs

Pounds to Gallons Table for Water

Conversion Table Icon
Pound (lbs) Gallon (gal)
1 lb 0.119 gal
2 lbs 0.239 gal
3 lbs 0.359 gal
4 lbs 0.479 gal
5 lbs 0.599 gal
6 lbs 0.718 gal
7 lbs 0.838 gal
8 lbs 0.958 gal
9 lbs 1.078 gal
10 lbs 1.198 gal
11 lbs 1.318 gal
15 lbs 1.797 gal
20 lbs 2.396 gal
25 lbs 2.995 gal
30 lbs 3.594 gal
35 lbs 4.193 gal
40 lbs 4.793 gal
45 lbs 5.392 gal
50 lbs 5.991 gal
100 lbs 11.982 gal

FAQ on Gallons to Pounds and Pounds to Gallons converter

FAQ icon

  • No, A Gallon of any liquid item will weigh more than a pound. It depends on the density of the item.
    Unless the density of the item is 1 lb/gal or 0.12 g/cc, it will never be equal to a pound
    Less than a quarter of a gallon of water is a pound

  • The Imperial Gallon is bigger than US Gallon.
    1 US Gallon = 0.834 times Imperial Gallon.
    The US Gallon is 3.784 Liters, Imperial Gallon is 4.54 Liters