1 US quarts to US gallons
0.250 gal
1 qt = 0.250 gal.
US gallons
0.250gal
1 qt = 0.250 gal
In short
How many US gallons is 1 US quarts?
1 qt = 0.250 gal. 1 US quart = 0.250000 US gallons, so the working is 1 × 0.250000 = 0.250.
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 US quart = 0.250000 US gallons 1 × 0.250000 = 0.250
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 | 0 | −0.25000 |
| 1 decimal | 0.3 | +0.05000 |
| 2 decimals | 0.25 | exact |
Round trip: take 0.250 gal back the other way and you land on 1.0000 qt — a drift of 0.0000 qt. That gap is the rounding, not the conversion.
What 1 qt looks like
1 qt
One US quart is a quarter gallon and 946.35 millilitres, just short of a litre.
Frequently asked questions
What is 1 US quarts in US gallons?
1 US quarts is 0.250 US gallons. 1 US quart = 0.250000 US gallons, so the working is 1 × 0.250000 = 0.250.
How accurate is 0.250 gal?
Rounding to 0.250 gal and converting straight back gives 1.0000 qt, a drift of 0.0000 qt from the 1 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
Quarts to Gallons Converter
Convert US quarts to gallons — four quarts to the gallon, exactly.
Open the quarts to gallons converter →