Gallons to Liters Converter
Convert gallons to liters instantly for fuel tanks, car maintenance, cooking, science, aquariums, and more. Enter your gallons and get precise liters in real time.
🚗 Quick Conversion: 7 gallons = 26.498 liters | 2.5 gallons = 9.46353 liters
Gallons to Liters Calculator
Gallons (gal)
Liters (L)
Gallons to Liters Examples
1 gal = 3.78541 L
1 gallon = 3.78541 liters (fuel, water, etc.)
7 gal = 26.498 L
7 gallons = 26.498 liters (car fuel tank)
2.5 gal = 9.46353 L
2.5 gallons = 9.46353 liters (cooking, recipes)
10 gal = 37.8541 L
10 gallons = 37.8541 liters (pool, aquarium)
1 L = 0.264172 gal
1 liter = 0.264172 gallons (reverse conversion)
🚗 Gallons to Liters Conversion Guide
Gallons to liters conversion is essential for car owners, mechanics, travelers, cooks, and aquarium enthusiasts. Our tool gives you instant, accurate results for any gallons-to-liters calculation.
Use this tool for fuel tank conversions, car maintenance, pool and aquarium volume, shipping, and more. No more guessing or manual math—just enter your gallons and get liters instantly.
🧮 Conversion Formula
- Gallons to Liters: liters = gallons × 3.78541
- Liters to Gallons: gallons = liters × 0.264172
- US Standard: 1 gallon = 3.78541 liters
- Reverse: 1 liter = 0.264172 gallons
🏁 Real-World Uses
- ⛽ Fuel: Convert car, truck, or motorcycle fuel tank capacity
- 🍲 Cooking: Scale up recipes for large events or catering
- 🐟 Aquarium: Calculate water volume for fish tanks
- 🏊♂️ Pool: Find pool water volume for maintenance
- 🚚 Shipping: Convert container or drum volume for logistics
Gallons to Liters: Definition, Origin/History, Current Use, Examples
Definition
A gallon is a unit of volume used primarily in the United States for measuring fuel, beverages, and large liquid containers. One US gallon equals 3.78541 liters. A liter (L) is the metric standard for liquid volume, used globally in science, industry, and daily life. This tool converts gallons to liters for car fuel tanks, aquarium water changes, and beverage packaging.
Origin or History
The gallon originated in England as a standard for wine and ale, but the US and UK gallons now differ. The liter was established during the French Revolution and is now the international standard. Converting gallons to liters is crucial for travelers, car owners, and anyone working with international product specifications.
Current Use
Gallons are used in the US for gasoline, milk, and paint. Liters are used worldwide for bottled drinks, aquarium sizes, and scientific measurements. This converter is ideal for comparing US and international fuel prices, aquarium setups, and beverage recipes.
Examples
- How many liters in a 15-gallon fish tank? (Answer: 56.78 L)
- Convert 10 gallons of gasoline to liters for a European road trip. (Answer: 37.85 L)
- How much is 1 gallon of milk in liters? (Answer: 3.785 L)
- Recipe calls for 2 liters of punch—how many gallons is that? (Answer: 0.528 gal)
🚗 Why Use Our Gallons to Liters Converter?
- Free & Instant: No registration, no fees—just type and get real-time conversions.
- Lab-Grade Accuracy: Uses the exact US gallon to liter factor for professional, scientific, and industrial use.
- Perfect for Fuel, Cooking & More: Designed for car owners, mechanics, recipes, aquariums, and everyday use.
- Copy & Swap: Easily copy results or swap between gallons and liters.
- Mobile Friendly: Works great on all devices and screen sizes.
- No Download Needed: Use directly in your browser—fast and secure.