Convert Gallons (US) to Quarts
Instantly convert Gallons (US) (gal) to Quarts (qt) with our free online calculator.
Formula: gal to qt — multiply by 4
Reference Table
| Gallons (US) (gal) | Quarts (qt) |
|---|---|
| 1 | 4 |
| 5 | 20 |
| 10 | 40 |
| 25 | 99.9999 |
| 50 | 200 |
| 100 | 400 |
How to Convert Gallons (US) to Quarts
Formula
To convert Gallons (US) (gal) to Quarts (qt): multiply by 4
Step-by-Step
- Start with your value in Gallons (US) (gal).
- Multiply by 4 to perform the conversion.
- The result is your value expressed in Quarts (qt).
Conversion Factor
1 gal = 4 qt
Reverse Factor
1 qt = 0.25 gal
Worked Example
Convert 25 Gallons (US) to Quarts: 25 gal = 99.9999 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.
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.
Quick Facts
- 1 Gallon (US) equals 4 Quarts
- 1 Quart equals 0.25 Gallons (US)
- Gallon (US) is a unit of volume
- Quart is a unit of volume
- This conversion is commonly used in cooking, chemistry, fluid mechanics, and everyday liquid measurement
- The Gallon (US) belongs to the imperial system
Common Gallon (US) to Quart Conversions
| Gallons (US) (gal) | Quarts (qt) |
|---|---|
| 0.01 | 0.04 |
| 0.1 | 0.4 |
| 0.25 | 0.999999 |
| 0.5 | 2 |
| 1 | 4 |
| 2 | 8 |
| 3 | 12 |
| 5 | 20 |
| 10 | 40 |
| 15 | 60 |
| 20 | 80 |
| 25 | 99.9999 |
| 50 | 200 |
| 75 | 300 |
| 100 | 400 |
| 250 | 999.999 |
| 500 | 2000 |
| 1000 | 4000 |
| 5000 | 20000 |
| 10000 | 40000 |
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.
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.
Why Convert Gallons (US) to Quarts?
Volume conversions between Gallons (US) and Quarts 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 Gallons (US) to Quarts?
A US customary unit of liquid volume equal to exactly 3. To convert Gallons (US) to Quarts, multiply by 4. For example, 25 gal equals 99.9999 qt.
How many Quarts are in 1 Gallon (US)?
There are 4 Quarts in 1 Gallon (US).
How many Gallons (US) are in 1 Quart?
There are 0.25 Gallons (US) in 1 Quart.
What is the formula for Gallon (US) to Quart conversion?
The formula is: multiply by 4. This means 1 gal = 4 qt.
Is a Gallon (US) bigger than a Quart?
No. One Gallon (US) is smaller than one Quart because 1 gal equals 4 qt, which is greater than 1.
When do you need to convert between Gallons (US) and Quarts?
A US customary unit of volume equal to exactly 2 US pints, 4 US cups, or 1/4 of a US gallon (≈ 946. Gallon (US) and Quart 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.