1 US gallons to US quarts
4.00 qt
1 gal = 4.00 qt.
US quarts
4.00qt
1 gal = 4.00 qt
In short
How many US quarts is 1 US gallons?
1 gal = 4.00 qt. 1 US gallon = 4.000000 US quarts, so the working is 1 × 4.000000 = 4.00.
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 gallon = 4.000000 US quarts 1 × 4.000000 = 4.00
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 (qt) | Off by |
|---|---|---|
| Whole number | 4 | exact |
| 1 decimal | 4.0 | exact |
| 2 decimals | 4.00 | exact |
Round trip: take 4.00 qt back the other way and you land on 1.0000 gal — a drift of 0.0000 gal. That gap is the rounding, not the conversion.
What 1 gal looks like
1 gal
A US gallon is four quarts, or exactly 3.785411784 litres by definition.
Frequently asked questions
What is 1 US gallons in US quarts?
1 US gallons is 4.00 US quarts. 1 US gallon = 4.000000 US quarts, so the working is 1 × 4.000000 = 4.00.
How accurate is 4.00 qt?
Rounding to 4.00 qt and converting straight back gives 1.0000 gal, a drift of 0.0000 gal 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
Gallons to Quarts Converter
Convert US gallons to quarts — for splitting a bulk container into batches.
Open the gallons to quarts converter →