Gallons to Quarts Converter
Convert between US liquid gallons and quarts with precision. Simple 1:4 ratio conversion.
Volume Converter
Common Gallon to Quart Conversions
| Gallons | Quarts | Description |
|---|---|---|
| 1 | 4 | 1 gallon = 4 quarts (exact) |
| 0.5 | 2 | ½ gallon = 2 quarts |
| 0.25 | 1 | ¼ gallon = 1 quart |
| 2 | 8 | 2 gallons = 8 quarts |
| 3 | 12 | 3 gallons = 12 quarts |
| 5 | 20 | 5 gallons = 20 quarts |
| 10 | 40 | 10 gallons = 40 quarts |
| 0.125 | 0.5 | ⅛ gallon = ½ quart |
Real-World Volume Examples
| Item | Gallons | Quarts | Context |
|---|---|---|---|
| Car gas tank (small) | 12 | 48 | Compact car fuel capacity |
| Car gas tank (large) | 20 | 80 | SUV fuel capacity |
| Large cooking pot | 2 | 8 | Restaurant-size pot |
| Home water heater | 40 | 160 | Standard residential tank |
| Swimming pool (small) | 1000 | 4000 | Above-ground pool |
| Milk jug | 1 | 4 | Standard grocery store size |
| Paint bucket | 5 | 20 | Commercial paint container |
| Ice cream container | 0.5 | 2 | Half-gallon family size |
Quick Reference
Basic Rule
1 gallon = 4 quarts
Always exact ratio
Quick Math
Multiply by 4
Gallons → Quarts
Conversion Formulas
Gallons × 4 = Quarts
Gallons to Quarts
Quarts ÷ 4 = Gallons
Quarts to Gallons
1 gal = 4 qt (exact)
US liquid units
Usage Tips
Perfect for cooking and recipe scaling
Remember the 1:4 ratio for easy mental math
Useful for automotive and industrial measurements
US liquid units only (not Imperial or dry)
Understanding Gallons to Quarts Conversion
The Perfect 1:4 Ratio
The conversion between US liquid gallons and US liquid quarts is remarkably simple: 1 gallon always equals exactly 4 quarts. This perfect ratio makes calculations straightforward and eliminates the need for complex formulas or approximations.
Why This Ratio Exists
The term "quart" comes from the Latin "quartus," meaning "fourth." Historically, a quart was defined as one-fourth of a gallon, which explains the exact 4:1 relationship we use today.
Conversion Steps
Gallons to Quarts:
Multiply gallons × 4
Example: 2.5 gal × 4 = 10 qt
Quarts to Gallons:
Divide quarts ÷ 4
Example: 12 qt ÷ 4 = 3 gal
Practical Applications
Cooking & Baking
Scale recipes up or down using the 1:4 ratio
Automotive
Calculate fuel quantities and engine oil volumes
Home & Garden
Measure paint, fertilizer, and liquid supplies
Key Points to Remember
• 1 gallon = 4 quarts (always exact)
• Works only with US liquid units
• Simple multiplication/division
• Perfect for mental math calculations
• No decimal approximations needed
• Quart means "one-fourth" in Latin