Convert Quarts to Gallons (US)
Instantly convert Quarts (qt) to Gallons (US) (gal) with our free online calculator.
Formula: qt to gal — multiply by 0.25
Reference Table
| Quarts (qt) | Gallons (US) (gal) |
|---|---|
| 1 | 0.25 |
| 5 | 1.25 |
| 10 | 2.5 |
| 25 | 6.25 |
| 50 | 12.5 |
| 100 | 25 |
How to Convert Quarts to Gallons (US)
Formula
To convert Quarts (qt) to Gallons (US) (gal): multiply by 0.25
Step-by-Step
- Start with your value in Quarts (qt).
- Multiply by 0.25 to perform the conversion.
- The result is your value expressed in Gallons (US) (gal).
Conversion Factor
1 qt = 0.25 gal
Reverse Factor
1 gal = 4 qt
Worked Example
Convert 25 Quarts to Gallons (US): 25 qt = 6.25 gal
About Quart (qt)
A US customary unit of volume equal to exactly 2 US pints, 4 US cups, or 1/4 of a US gallon (≈ 946.353 mL). Quarts are a common US retail size for milk and juice cartons (the classic 'quart of milk' US carton), motor oil and other automotive fluids (1 quart bottles are the de-facto US automotive-fluid retail SKU — engine oil, transmission fluid, brake fluid, power steering, coolant), interior paint (consumer paint sample cans are 1 qt; many specialty / craft paints are quart-only), Crock-Pot / slow-cooker capacity ratings (2 qt, 4 qt, 6 qt, 8 qt), and home-canning / preserving (Ball Mason wide-mouth quart jars). A US quart is conveniently almost exactly one litre (~5.4% less), so many internationally-traded products use a single-SKU 1-litre size that satisfies both US quart-equivalent customers and metric markets. **Important**: the UK Imperial quart is 1.1365 L — 20% larger than the US quart. 1 US qt = 32 fl oz = 0.9464 L = 0.8327 UK qt.
About Gallon (US) (gal)
A US customary unit of liquid volume equal to exactly 3.785411784 litres (231 cubic inches by the 1707 Queen Anne wine-gallon definition), or exactly 128 US fluid ounces. The US gallon is the dominant US retail and industrial liquid-volume unit: gasoline pricing and fuel economy (the US EPA window-sticker MPG figures use US gal), milk and beverage retail containers, residential and commercial water heaters (40 / 50 / 75 / 80 gal sizes), swimming-pool and aquarium capacity ratings, US paint and coatings cans, household oil-heat tank sizing, and US-domestic-shipping bulk-liquid descriptors. **Important**: the US gallon ≠ the UK Imperial gallon (4.54609 L = 1.20095 US gal) — a recurring source of confusion in trans-Atlantic fuel-economy comparisons (40 UK mpg = 33.3 US mpg despite identical real efficiency). One US gal of water at 60 °F weighs 8.345 lb. Convert US gal to L by multiplying by 3.7854; to mL by 3,785.4; to fl oz by 128.
Quick Facts
- 1 Quart equals 0.25 Gallons (US)
- 1 Gallon (US) equals 4 Quarts
- Quart is a unit of volume
- Gallon (US) is a unit of volume
- This conversion is commonly used in cooking, chemistry, fluid mechanics, and everyday liquid measurement
- The Quart belongs to the imperial system
Common Quart to Gallon (US) Conversions
| Quarts (qt) | Gallons (US) (gal) |
|---|---|
| 0.01 | 0.0025 |
| 0.1 | 0.025 |
| 0.25 | 0.0625 |
| 0.5 | 0.125 |
| 1 | 0.25 |
| 2 | 0.5 |
| 3 | 0.75 |
| 5 | 1.25 |
| 10 | 2.5 |
| 15 | 3.75 |
| 20 | 5 |
| 25 | 6.25 |
| 50 | 12.5 |
| 75 | 18.75 |
| 100 | 25 |
| 250 | 62.5 |
| 500 | 125 |
| 1000 | 250 |
| 5000 | 1250 |
| 10000 | 2500 |
Understanding Quarts
The Quart (symbol: qt) is a unit of volume. A US customary unit of volume equal to exactly 2 US pints, 4 US cups, or 1/4 of a US gallon (≈ 946.353 mL). Quarts are a common US retail size for milk and juice cartons (the classic 'quart of milk' US carton), motor oil and other automotive fluids (1 quart bottles are the de-facto US automotive-fluid retail SKU — engine oil, transmission fluid, brake fluid, power steering, coolant), interior paint (consumer paint sample cans are 1 qt; many specialty / craft paints are quart-only), Crock-Pot / slow-cooker capacity ratings (2 qt, 4 qt, 6 qt, 8 qt), and home-canning / preserving (Ball Mason wide-mouth quart jars). A US quart is conveniently almost exactly one litre (~5.4% less), so many internationally-traded products use a single-SKU 1-litre size that satisfies both US quart-equivalent customers and metric markets. **Important**: the UK Imperial quart is 1.1365 L — 20% larger than the US quart. 1 US qt = 32 fl oz = 0.9464 L = 0.8327 UK qt.
It belongs to the imperial measurement system.
Quarts are commonly used in cooking, chemistry, fluid mechanics, and everyday liquid measurement.
Understanding Gallons (US)
The Gallon (US) (symbol: gal) is a unit of volume. A US customary unit of liquid volume equal to exactly 3.785411784 litres (231 cubic inches by the 1707 Queen Anne wine-gallon definition), or exactly 128 US fluid ounces. The US gallon is the dominant US retail and industrial liquid-volume unit: gasoline pricing and fuel economy (the US EPA window-sticker MPG figures use US gal), milk and beverage retail containers, residential and commercial water heaters (40 / 50 / 75 / 80 gal sizes), swimming-pool and aquarium capacity ratings, US paint and coatings cans, household oil-heat tank sizing, and US-domestic-shipping bulk-liquid descriptors. **Important**: the US gallon ≠ the UK Imperial gallon (4.54609 L = 1.20095 US gal) — a recurring source of confusion in trans-Atlantic fuel-economy comparisons (40 UK mpg = 33.3 US mpg despite identical real efficiency). One US gal of water at 60 °F weighs 8.345 lb. Convert US gal to L by multiplying by 3.7854; to mL by 3,785.4; to fl oz by 128.
It belongs to the imperial measurement system.
Gallons (US) are commonly used in cooking, chemistry, fluid mechanics, and everyday liquid measurement.
Why Convert Quarts to Gallons (US)?
Volume conversions between Quarts and Gallons (US) are essential in cooking, chemistry, and fluid mechanics. Recipes from different countries use different measurement systems, laboratory procedures reference varying units, and engineers designing fluid systems need precise volume calculations for pipes, tanks, and pumps.
Frequently Asked Questions
How do I convert Quarts to Gallons (US)?
A US customary unit of volume equal to exactly 2 US pints, 4 US cups, or 1/4 of a US gallon (≈ 946. To convert Quarts to Gallons (US), multiply by 0.25. For example, 25 qt equals 6.25 gal.
How many Gallons (US) are in 1 Quart?
There are 0.25 Gallons (US) in 1 Quart.
How many Quarts are in 1 Gallon (US)?
There are 4 Quarts in 1 Gallon (US).
What is the formula for Quart to Gallon (US) conversion?
The formula is: multiply by 0.25. This means 1 qt = 0.25 gal.
Is a Quart bigger than a Gallon (US)?
Yes. One Quart is larger than one Gallon (US) because 1 qt equals 0.25 gal, which is less than 1.
When do you need to convert between Quarts and Gallons (US)?
A US customary unit of liquid volume equal to exactly 3. Quart and Gallon (US) are both volume units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.