Gallon Calculator
Convert gallons to various liquid measurement units
Gallon Calculator
Table of Contents
About Gallons
A gallon is a unit of volume used primarily in the United States and some other countries. There are different types of gallons:
- US Gallon = 3.78541 liters
- Imperial Gallon = 4.54609 liters
- US Dry Gallon = 4.40488 liters
Our calculator uses the US liquid gallon, which is the most commonly used gallon measurement in the United States.
Conversion Rates
One US gallon equals:
- 3.78541 liters
- 4 quarts
- 8 pints
- 16 cups
- 128 fluid ounces
- 256 tablespoons
- 768 teaspoons
Common Uses
Gallons are commonly used for measuring:
- Fuel (gasoline/petrol)
- Milk and other dairy products
- Water consumption
- Pool capacity
- Large-scale cooking and food production
- Industrial liquids
Measurement Tips
- Use appropriate containers for accurate measurements
- Consider temperature effects on volume
- Check which gallon system is being referenced
- Use conversion tools for precise measurements
- Keep track of significant figures in calculations
Frequently Asked Questions
What's the difference between US and Imperial gallons?
A US gallon is about 3.78541 liters, while an Imperial gallon is about 4.54609 liters. The Imperial gallon is approximately 20% larger than the US gallon.
Why do we use gallons instead of metric units?
The United States continues to use gallons as part of its customary system of measurement, while most other countries have adopted the metric system. This is largely due to historical and cultural reasons.