Liters to Gallons Converter
Convert liters to US gallons instantly. Type any liter value and get the exact gallon result. Includes a common volumes table, formula, and fuel and beverage examples.
Built and maintained by Will Henschell, Data Scientist. Editorial policy.
US gallons (gal)
Need the reverse? Convert US gallons to liters →
Common Liters to US gallons Conversions
| liters (L) | US gallons (gal) | Note |
|---|---|---|
| 1 L | 0.264 gal | 1 L |
| 2 L | 0.528 gal | 2 L |
| 3.785 L | 1 gal | 1 US gallon |
| 4 L | 1.057 gal | 4 L |
| 5 L | 1.321 gal | 5 L |
| 10 L | 2.642 gal | 10 L |
| 20 L | 5.283 gal | 20 L |
| 50 L | 13.209 gal | 50 L |
| 100 L | 26.417 gal | 100 L |
The Liters-to-Gallons Formula
To convert liters to US gallons, multiply by 0.264172 (or divide by 3.78541). Since 1 US gallon = 3.785411784 liters exactly, 1 liter = 0.264172 US gallons. For quick mental math, multiply by 0.25 (divide by 4) — this underestimates by about 5.4%, which is close enough for rough estimates. Example: 40 liters × 0.264172 = 10.57 gallons; 100 liters × 0.264172 = 26.42 gallons.
Liters to Gallons for Fuel Economy
International fuel economy ratings use liters per 100 km (L/100km), while the US uses miles per gallon (mpg). To compare: mpg (US) = 235.214 ÷ L/100km. A European car rated at 6 L/100km = 39.2 mpg (US). A US car at 30 mpg = 7.84 L/100km. Gas prices differ in scale: at €1.60/liter in Europe, 1 US gallon (3.785 L) costs roughly €6.06. At an exchange rate of 1.07 USD/EUR, that is about $6.48 per gallon-equivalent — more than most US pump prices.
Common Liter Quantities in Beverages and Daily Use
Beverages are sold in liter and milliliter quantities in metric countries. Common conversions: 0.5 L bottle = 0.132 gal; 1 L bottle = 0.264 gal; 1.5 L bottle = 0.396 gal; 2 L soda bottle = 0.528 gal. A case of 24 × 500 mL water bottles = 12 liters = 3.17 gallons. The standard US milk jug is 1 gallon = 3.785 L. Daily hydration guidelines: 2–3 liters per day = 0.53–0.79 gallons.
Frequently Asked Questions
How many gallons is 1 liter?
1 liter equals approximately 0.264172 US gallons — about ¼ of a US gallon.
How do I convert liters to gallons?
Multiply liters by 0.264172. For a quick estimate, divide by 4 (multiply by 0.25) — this underestimates by about 5%. Example: 20 liters × 0.264172 = 5.28 gallons.
How many liters is a gallon?
1 US gallon = 3.785 liters. To convert a number of liters to gallons, divide by 3.785.
How many gallons is a 2-liter bottle?
2 liters × 0.264172 = 0.528 US gallons. A standard 2-liter soda bottle holds about half a US gallon.