Convert US Gallons to Liters
Convert US gallons to liters using the 3.78541 factor. Covers fuel tank capacity, aquarium sizing, pool volume, and irrigation calculations.
Volume
Detailed Explanation
US Gallons to Liters Conversion
The formula is:
liters = US gallons × 3.78541
Quick Reference Table
| US Gallons | Liters | Context |
|---|---|---|
| 0.5 | 1.893 | Half gallon jug |
| 1 | 3.785 | Milk jug |
| 2 | 7.571 | Large container |
| 5 | 18.927 | Water cooler bottle |
| 10 | 37.854 | Fish tank (small) |
| 20 | 75.708 | Gas station fill-up |
| 30 | 113.56 | Hot water heater (small) |
| 40 | 151.42 | Hot water heater (standard) |
| 55 | 208.20 | Rain barrel |
Aquarium and Pool Volumes
Tank sizing requires gallon-to-liter conversion for equipment specifications:
| Tank Size (gallons) | Liters | Type |
|---|---|---|
| 5 | 18.9 | Desktop aquarium |
| 10 | 37.9 | Small fish tank |
| 20 | 75.7 | Community tank |
| 55 | 208.2 | Large aquarium |
| 100 | 378.5 | Show aquarium |
| 5,000 | 18,927 | Small swimming pool |
| 20,000 | 75,708 | Average swimming pool |
Cooking Volume Conversions
US cooking measurements use gallons as the largest standard unit:
1 US gallon = 4 quarts = 8 pints = 16 cups = 128 fl oz = 3.785 liters
Irrigation and Gardening
Gardeners often need to convert between gallons and liters for:
- Watering schedules (gallons per day → liters)
- Fertilizer mixing ratios
- Rain gauge readings
- Drip irrigation flow rates (gallons per hour → liters per hour)
Use Case
An aquarium hobbyist needs to convert their 55-gallon tank volume to liters to correctly dose a water treatment product that specifies milliliters per liter.