20 liters to US gallons
5.28 gal
20 L = 5.28 gal, or 1 gal 1.28 qt.
US gallons
5.28gal
20 L = 5.28 gal
The short answer
How many US gallons is 20 liters?
20 L = 5.28 gal, which reads as 1 gal 1.28 qt. 1 liter = 0.264172 US gallons, so the working is 20 × 0.264172 = 5.28.
The working
The factor below is an exact definition rather than a measurement, so nothing is approximated in the arithmetic. The only rounding on this page happens where a number is displayed.
1 liter = 0.264172 US gallons 20 × 0.264172 = 5.28
20 liters as 1 gal 1.28 qt
A decimal is the right form for a spreadsheet and the wrong one for almost everything else. Split into whole units, 20 L is 1 gal 1.28 qt — the reading you would actually give someone, and the one a tape measure, a scale, or a timetable is marked in.
How much precision do you need?
Each row is the same answer cut at a different number of decimals, with what that choice costs you. Pick the shortest row whose error is smaller than whatever you are measuring with.
| Rounded to | Answer (gal) | Off by |
|---|---|---|
| Whole number | 5 | −0.28344 |
| 1 decimal | 5.3 | +0.01656 |
| 2 decimals | 5.28 | −0.00344 |
Round trip: take 5.28 gal back the other way and you land on 19.9870 L — a drift of 0.0130 L. That gap is the rounding, not the conversion.
What 20 L looks like
20 L
The NATO-pattern steel jerrycan holds 20 litres, the middle size in a range that also runs 5 and 10 litres.
Frequently asked questions
What is 20 liters in US gallons?
20 liters is 5.28 US gallons. 1 liter = 0.264172 US gallons, so the working is 20 × 0.264172 = 5.28.
What is 20 liters in gallons and quarts?
1 gal 1.28 qt. A decimal answer such as 5.28 gal is the right shape for a form field or a spreadsheet, but the compound form is what a tape measure, a scale, or a schedule actually reads.
How accurate is 5.28 gal?
Rounding to 5.28 gal and converting straight back gives 19.9870 L, a drift of 0.0130 L from the 20 you started with. The factor itself is exact; every bit of that difference comes from the rounding, not the conversion.
Nearby values
Any value at all
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