120 liters to US gallons
31.70 gal
120 L = 31.70 gal, or 7 gal 3.70 qt.
US gallons
31.70gal
120 L = 31.70 gal
The short answer
How many US gallons is 120 liters?
120 L = 31.70 gal, which reads as 7 gal 3.70 qt. 1 liter = 0.264172 US gallons, so the working is 120 × 0.264172 = 31.70.
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 120 × 0.264172 = 31.70
120 liters as 7 gal 3.70 qt
A decimal is the right form for a spreadsheet and the wrong one for almost everything else. Split into whole units, 120 L is 7 gal 3.70 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 | 32 | +0.29935 |
| 1 decimal | 31.7 | −0.00065 |
| 2 decimals | 31.70 | −0.00065 |
Round trip: take 31.70 gal back the other way and you land on 119.9976 L — a drift of 0.0024 L. That gap is the rounding, not the conversion.
What 120 L looks like
117 L
A US beer barrel is legally 31 US gallons, near 117 litres, which is why the half barrel holds 15.5.
Frequently asked questions
What is 120 liters in US gallons?
120 liters is 31.70 US gallons. 1 liter = 0.264172 US gallons, so the working is 120 × 0.264172 = 31.70.
What is 120 liters in gallons and quarts?
7 gal 3.70 qt. A decimal answer such as 31.70 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 31.70 gal?
Rounding to 31.70 gal and converting straight back gives 119.9976 L, a drift of 0.0024 L from the 120 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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