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1 g/mL equals 1 kg/L.
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The kg to gallons formula is: gallons = kg / (density in kg/L x liters per gallon). Your numbers, live:
Density reference (kg/L)
| Substance | Density (kg/L) |
|---|---|
| Water | 1.000 |
| Whole milk | 1.030 |
| Diesel No. 2 | 0.84 |
| Gasoline / petrol | 0.740 |
| Kerosene | 0.810 |
| Ethanol | 0.789 |
| Olive oil | 0.915 |
| Honey | 1.42 |
| Motor oil 10W-30 | 0.87 |
| All-purpose flour, spooned | 0.51 |
| Granulated sugar | 0.845 |
Sources: water by definition; whole milk 1027-1033 kg/m3 at 20 C (Univ. of Guelph Dairy Science eBook); diesel No. 2 0.830-0.855 (ASTM D975); gasoline 0.72-0.78 (Stanford Properties of Fuels); ethanol 0.789 at 20 C; olive oil 0.910-0.916 (CODEX STAN 33); honey about 1.42 (USDA); motor oil and kerosene typical values; flour 120 g per cup (King Arthur); sugar 200 g per cup (USDA). Values vary with temperature and grade; flour and sugar are granular and packing-dependent.
Quick conversion table (US gallons)
Kg to gallon conversion table for water, milk, diesel, and gasoline (US gallons).
| Kilograms | Water (US gal) | Whole milk (US gal) | Diesel No. 2 (US gal) | Gasoline (US gal) |
|---|---|---|---|---|
| 1 | 0.264172 | 0.256478 | 0.314491 | 0.356989 |
| 2 | 0.528344 | 0.512955 | 0.628981 | 0.713979 |
| 5 | 1.32086 | 1.282389 | 1.572453 | 1.784946 |
| 10 | 2.641721 | 2.564777 | 3.144905 | 3.569893 |
| 20 | 5.283441 | 5.129554 | 6.289811 | 7.139785 |
| 50 | 13.208603 | 12.823886 | 15.724527 | 17.849463 |
Popular conversions
Quick answers for the most searched kilograms to gallons conversions, all in kg to US gallons.
- 5 kg to gallons (water): 1.320860261791 US gallons.
- 20 kg of water in gallons: 5.283441047163 US gallons.
- 50 kg to gallons (water): 13.208602617907 US gallons (10.998462414954 imperial gallons).
- How many gallons is 50 kg of water: 13.208602617907 US gallons.
- 1 kg of diesel in gallons: 0.314490538522 US gallons.
- 1 kg of olive oil in gallons: 0.288712625528 US gallons.
- 5 kg of milk in gallons: 1.28238860368 US gallons.
- Cooking oil, kg to gallons: 9.5 kg at 0.88 kg/L = 2.851857 US gallons.
- 1 kg equals how many gallons (1kg = how many gallons): 0.264172052358 US gallons for water; for anything else it depends on density.
Use this page as a gallons to kg converter too: switch the direction toggle. 1 US gallon of water = 3.785411784 kg.
Frequently asked questions
How many gallons is 1 kg of water?
1 kilogram of water equals 0.264172052358 US gallons, or 0.219969248299 imperial (UK) gallons. Water has a density of 1 kilogram per liter, so 1 kg is exactly 1 liter, and 1 liter divided by 3.785411784 liters per US gallon gives 0.264172052358 US gallons.
How many gallons is 1 kg in the UK?
In the UK, 1 kilogram of water equals 0.219969248299 imperial gallons. The imperial gallon is 4.54609 liters, which is about 20.1 percent larger than the US gallon of 3.785411784 liters, so you always get fewer imperial gallons for the same mass.
What is the formula to convert kg to gallons?
gallons = kilograms / (density in kg per L x liters per gallon). Use 3.785411784 liters per US gallon or 4.54609 liters per imperial gallon. Example: 9.5 kg of cooking oil with a density of 0.88 kg per L gives 9.5 / (0.88 x 3.785411784) = 2.851857 US gallons.
How many gallons is 10 kg of water?
10 kilograms of water equals 2.641720523581 US gallons (2.19969248299 imperial gallons). Simply multiply the 1 kg value by 10: 10 x 0.264172052358 = 2.641720523581 US gallons.
How many gallons is 5 kg of milk?
5 kilograms of whole milk equals 1.28238860368 US gallons. Whole milk has a density of about 1.03 kg per L, so it is slightly denser than water: 5 / (1.03 x 3.785411784) = 1.28238860368 US gallons.
How many gallons is 1 kg of diesel?
1 kilogram of diesel equals 0.314490538522 US gallons, using a typical diesel density of 0.84 kg per L (ASTM D975 No. 2 diesel ranges from 0.830 to 0.855). Because diesel is lighter than water, the same mass takes up more volume: 1 / (0.84 x 3.785411784) = 0.314490538522 US gallons.
How many gallons is 1 kg of gasoline?
1 kilogram of gasoline equals 0.356989259943 US gallons, using a typical gasoline density of 0.74 kg per L. 20 kg of gasoline equals 7.139785198869 US gallons.
Why does converting kg to gallons require density?
Kilograms measure mass and gallons measure volume, so there is no fixed conversion factor between them. Density connects the two: volume = mass / density. For water the ratio is simple (1 kg = 0.264172052358 US gallons), but 1 kg of gasoline is 0.356989259943 US gallons while 1 kg of honey is only 0.18603665659 US gallons.
Can I convert kg to gallons without knowing the density?
No, not exactly. Without density you are guessing. Use this calculator's substance picker for common liquids, or enter a custom density. For rough estimates, water-like liquids (juice, wine, beer) are close to 1.0 kg per L, so multiply kilograms by 0.264172 to get US gallons.
What is the difference between a US gallon and an imperial gallon?
A US gallon is 3.785411784 liters and an imperial gallon is 4.54609 liters, so the imperial gallon is about 20.1 percent larger. 1 kg of water = 0.264172052358 US gallons but only 0.219969248299 imperial gallons. The US gallon is used in the United States; the imperial gallon in the UK and some Commonwealth countries.
How do I convert gallons back to kilograms?
Multiply: kilograms = gallons x liters per gallon x density in kg per L. 1 US gallon of water = 3.785411784 kg. 10 US gallons of diesel = 31.7974589856 kg (density 0.84). 2 imperial gallons of milk = 9.3649454 kg (density 1.03). Use the gallons-to-kilograms direction in this calculator.
Is 1 kg the same as 1 liter?
Only for water at about 4 C, where 1 kg of water occupies exactly 1 liter, which is 0.264172052358 US gallons. For anything else it depends on density: 1 kg of honey is only 0.704 liters (0.18603665659 US gallons), while 1 kg of gasoline is 1.351 liters (0.356989259943 US gallons).
How many gallons is 1 kg of honey or flour?
1 kg of honey = 0.18603665659 US gallons (density 1.42). 1 kg of all-purpose flour = 0.517984416389 US gallons (spooned density 0.51), but flour is granular so treat this as an estimate: packing and sifting change the volume.
How does temperature change the kg to gallons result?
Density falls as liquids warm and expand, so the same mass fills slightly more gallons when warm. The densities here are typical values around 15 to 20 C. For fuel trading or large volumes, use the density at the standard 15 C reference temperature used in your region.
How many gallons is 20 kg of water?
20 kilograms of water equals 5.283441047163 US gallons, or 4.39938496598 imperial gallons. 20 / (1.0 x 3.785411784) = 5.283441047163 US gallons.
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