Enter the volume in gallons and the density of the specific liquid into the calculator to determine the weight in pounds. This calculator can also evaluate any of the variables given the others are known.

Gal To Lbs Calculator

Enter any 2 values to calculate the missing one

Gal To Lbs Formula

The following formula is used to calculate the conversion from gallons to pounds.

lbs = Gal * d

Variables:

  • lbs is the weight in pounds
  • Gal is the volume in gallons
  • d is the density of the specific liquid (lbs/gal)

To calculate the weight in pounds, multiply the volume in gallons by the density of the specific liquid. For example, if you are converting gallons of water to pounds, you would use a density of approximately 8.34 lbs/gal.

US Gallons to Pounds Conversion Table (Water, ρ ≈ 1.00 g/mL; 1 gal ≈ 8.3454 lb)
Gallons (US) Pounds (lb)
1/160.522
1.043
1/61.391
¼2.086
2.782
3.130
½4.173
5.216
5.564
¾6.259
7.302
18.345
10.432
1⅓11.127
12.518
14.604
216.691
20.864
325.036
433.382
* Rounded to 3 decimals. Assumes water (ρ ≈ 1.00 g/mL). US customary: 1 gallon of water ≈ 8.3454 lb.

What is Gal To Lbs?

Gal to lbs is a conversion from gallons to pounds. This is often used in measurements for liquids, where the volume (in gallons) is converted to weight (in pounds). The exact conversion factor can vary depending on the specific liquid being measured, as different liquids have different densities. For example, a gallon of water weighs approximately 8.34 pounds.

How to Calculate Gal To Lbs?

The following steps outline how to calculate the weight in pounds (lbs) using the formula: lbs = Gal * d.


  1. First, determine the volume in gallons (Gal).
  2. Next, determine the density of the specific liquid (d) in lbs/gal.
  3. Next, gather the formula from above = lbs = Gal * d.
  4. Finally, calculate the weight in pounds (lbs).
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

volume in gallons (Gal) = 10

density of the specific liquid (d) = 8