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US Gallons to Kilograms Converter

Convert US gallons (gal) to kilograms (kg), with the formula, a conversion table and exact factors.

Change the values and press Calculate to work out your own figures.

Convert cups and spoons to grams or ounces (or back) for a chosen ingredient, using USDA weights, or enter your own density.

The quantity to convert. Fractions such as 3/4 or 1 1/2 are accepted.
Unit you want. Swap exchanges the two units.
Weight per cup differs by ingredient and by how it is measured (sifted, packed, chopped). Each option names the assumption used; choose Other to enter your own density.
Only used when the ingredient is Other: the weight per volume of your ingredient.
Result
Converted amount
3.78541 kg
Density used
1 g/mL (USDA FDC 174158, 1 ml = 1 g)
Exact
3.785411784

1 US gallons of water = 3.78541 kilograms. Weights for cups and spoons vary with how the ingredient is measured, so treat this as a close estimate.

The same amount in other weight units
UnitAmount
milligrams3,785,410
grams3,785.41
ounces (avoirdupois)133.526
pounds8.3454
Show the working
  1. 1 gal = 3785.411784 mL
  2. × 1 g/mL (USDA FDC 174158, 1 ml = 1 g) = 3785.411784 g
  3. = 3.785411784 kg

How to convert us gallons to kilograms

1 gal = 3.78541 kg, so multiply by 3.78541 to go from US gallons to kilograms. Going the other way, 1 kg = 0.264172 gal.

kg = gal × 3.78541
gal = kg × 0.264172

Worked example:

5 gal = 18927.05892 mL
× 1 g/mL (USDA FDC 174158, 1 ml = 1 g) = 18927.05892 g
= 18.92705892 kg

US Gallons to kilograms table

US GallonsKilograms
1 gal3.78541 kg
2 gal7.57082 kg
3 gal11.3562 kg
4 gal15.1416 kg
5 gal18.9271 kg
6 gal22.7125 kg
7 gal26.4979 kg
8 gal30.2833 kg
9 gal34.0687 kg
10 gal37.8541 kg
15 gal56.7812 kg
20 gal75.7082 kg
25 gal94.6353 kg
30 gal113.562 kg
40 gal151.416 kg
50 gal189.271 kg
75 gal283.906 kg
100 gal378.541 kg
250 gal946.353 kg
500 gal1,892.71 kg
1000 gal3,785.41 kg

About the units

US Gallons (gal)
US gallons, a US customary unit. Definition: NIST Handbook 44 Appendix C (US customary units; US gallon = 231 in³).
Kilograms (kg)
Kilograms, a metric unit. Definition: BIPM SI Brochure.

Formula version 0.1.0Reviewed