How To Convert Kilograms to Gallons – kg to gal

Enter your kilograms’ value in our calculator below for the equivalent amount in gallons. You can also try our kilograms-to-gallons formula for manual calculators.

Kilograms to Gallons Converter

A kilogram is a measure of mass, and a gallon is a measure of volume. The amount of kilograms in a gallon depends on the density of the item you’re measuring. For a correct result, multiply the object’s density in g/ml by 3.785412 and divide the number of kilograms by this result.

Gallons = Kilograms/(density g/ml * 3.785412)

The density of water is about 1 g/ml, so there are 3.785412 kilograms in a gallon of water. The formula to convert kilograms of water to gallons of water is 

Gallons of water = kilograms of water / 3.785412

Kilograms to Gallons

Reference the table below for common kilograms of water to gallons of water conversions.

Kilograms (kg) Gallons (gal)
0.25 0.066043
0.5 0.132087
1.5 0.396262
2 0.528349
2.27 0.600645
2.5 0.660433
3 0.792519
3.1 0.818898
3.2 0.845277
3.4 0.897357
3.55 0.937299
4 1.056688
4.3 1.136961
5 1.321717
5.6 1.479062
8 2.113375
9 2.377548
11.8 3.116591
12.5 3.302947
12.6 3.329326
14.7 3.885429
15.88 4.194497
16.5 4.353011
17.7 4.682501
22.6 5.973095
23 6.075187
24.9 6.577134
30.4 8.042498
30.9 8.178981
36.6 9.665768
40 10.572877
42.5 11.231295
45.5 12.022973
54.4 14.382471
82.5 21.804691
100 26.417205
286 75.562869
6000 1585.438400
1100 290.589950
1650 435.884925
12000 3178.064800

The Difference Between Kilograms and Gallons

The kilogram, abbreviated kg, is a unit of mass from the metric system. One kilogram is equal to 2.205 pounds or 1,000 grams. In countries that use the metric system, a kilogram is a standard unit for measuring a person’s weight.

A gallon, abbreviated gal, is a unit of volume from the United States Customary system. While the imperial system also uses gallons, an imperial gallon is about 20% bigger than the United States gallon. In the United States, many goods are sold by the gallon, including milk, gas, paint, and dry goods.

Since a kilogram measures mass and a gallon measures volume, you can’t convert directly from one to another. Instead, you must know the density of the item you’re measuring to get an accurate result.

Examples of Converting from Kilograms to Gallons

Density affects the result of the kg to gallons equation. Here’s how to convert kilograms to gallons for milk, vegetable oil, and all-purpose flour.


While it can fluctuate, the estimated density of milk is 1.03 g/ml. Plug this number into the formula, as well as the number of kilograms, and then calculate.

Gallons of milk = 5 kilograms of milk/(1.03 * 3.785412)

Gallons of milk =  5 kg of milk/3.89897436

1.282 gallons of milk = 5 kg of milk

Vegetable Oil

The density of vegetable oil is 0.92 g/ml. To determine kg to gallons of vegetable oil, you must also know the value for kg. If you have 5 kg of vegetable oil and want to know the equivalent in gallons, take the following steps:

  • Gallons of vegetable oil = 5kg/(0.92 * 3.785412)
  • Gallons of vegetable oil = 5kg/3.48257904
  • 1.436 gallons of vegetable oil = 5 kg of vegetable oil

All Purpose Flour

The density of all-purpose flour is 0.593 g/ml. If you have 5kg of all-purpose flour, you can determine the equivalent amount in gallons as follows:

  • Gallons of flour = 5kg/(0.593 * 3.785412)
  • Gallons flour = 5kg/2.244749316
  • 2.227 Gallons of flour = 5kg gallons of flour

Frequently Asked Questions (FAQ)FAQ

How do you convert from gallons to kilograms?

The formula to convert gallons to kilograms is kilograms = number of gallons x density x 3.785412. Since gallons are a volume measure and kilograms are a mass measure, you must know the density of the item you’re measuring in g/ml before converting.

What’s the formula for converting 50 kg to gallons?

The formula to convert 50 kg to gallons is gallons = 50/(density * 3.785412). Just plug in the density of the item you’re measuring in g/ml before completing the equation.

How many kg is one gallon of diesel fuel?

A gallon of diesel fuel is about 3.18 kg or 7 lbs. Five gallons of diesel fuel is roughly 15.9 kg or 35 pounds.

Can you convert kg to gallons without density?

Unless you’re converting kg to gallons of water, which is 3.79 kg to one gallon, you cannot make accurate conversions.

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Written by Murat

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