ConvBolt — Unit ConverterUS quarts to US gallons Converter
Converting US quarts to US gallons is a multiplication by a fixed factor: 1 qt = 0.25 gal. The table below covers the values people look up most often, and the formula section shows exactly where that factor comes from.
Because one us quart works out to 0.25 gal, the us gallon is the much smaller unit of the two: a figure given in us gallon always carries a smaller number than the same measurement in us quart. A chart drawn in qt can hide that, so check which label the axis uses before you compare two readings.
Kitchen and workshop measuring are where this pair comes up: a jug marked in US quarts alongside a recipe or container printed in US gallons is the classic case, and it is why the two labels rarely agree to the eye.
The conversion factor used here is 0.25 gal per us quart (2 significant digits as shown). Kept to seven figures it covers professional measurement; if you round it to two or three decimals for a spreadsheet, the error scales with the input — at a value of 1,000 qt a factor rounded to three decimals can be off by a measurable amount. The reverse direction uses 4 qt per gal, the exact reciprocal, so a round trip through both pages returns your original number.
US quarts to US gallons formula
Use this formula to convert any us quart value to US gallons:
Worked example: 100 qt × 0.25 = 25 gal.
US quarts to US gallons conversion table
| US quarts (qt) | US gallons (gal) |
|---|---|
| 0.5 qt | 0.125 gal |
| 1 qt | 0.25 gal |
| 2 qt | 0.5 gal |
| 5 qt | 1.25 gal |
| 10 qt | 2.5 gal |
| 20 qt | 5 gal |
| 50 qt | 12.5 gal |
| 100 qt | 25 gal |
| 500 qt | 125 gal |
| 1000 qt | 250 gal |
How to convert US quarts to US gallons
Multiply the us quart value by 0.25 to get the equivalent in US gallons. This single factor works for every value in the table above and for anything else you need — there is no per-value adjustment, which is why a conversion table and a calculator always agree.
If you need the opposite direction, use the US gallons to US quarts converter instead of dividing by hand; both pages use the same source factors. For every other qt conversion in one place, see the qt conversion hub.
Frequently asked questions
How many US gallons are in 1 us quart?
1 us quart = 0.25 gal.
What is 100 US quarts in US gallons?
100 qt = 25 gal.
Is converting US quarts to US gallons the same as US gallons to US quarts?
No — the direction changes the multiplier. The reverse conversion (1 gal = 4 qt) is on the US gallons to US quarts page.
Related conversions
Try the ConvBolt Unit Converter for any other volume unit, browse the Volume conversions, or read our conversion guides.