Liters to US Gallons
One liter equals 0.264172 US gallons.
US Gallons = liters ÷ 3.785411784
Volume Conversion Calculator
Common Volume Conversions
Cooking & Baking Reference
Cooking Basics
- • 1 cup = 16 tablespoons = 48 teaspoons
- • 1 tablespoon = 3 teaspoons
- • 1 cup = 8 fluid ounces
- • 1 pint = 2 cups = 16 fluid ounces
Baking Conversions
- • 1 cup flour ≈ 120-125g
- • 1 cup sugar ≈ 200g
- • 1 cup butter ≈ 227g
- • 1 cup milk ≈ 240ml
International
- • 1 US cup = 236.588 ml
- • 1 UK cup = 284.131 ml
- • 1 metric cup = 250 ml
- • 1 Japanese cup = 200 ml
Volume Units Reference
Metric System
- 1 m³ = 1,000 liters
- 1 liter = 1,000 ml
- 1 liter = 1 dm³
- 1 ml = 1 cm³
US Customary
- 1 gal = 4 quarts
- 1 quart = 2 pints
- 1 pint = 2 cups
- 1 cup = 8 fl oz
Key Conversions
- 1 US gal = 3.785 L
- 1 UK gal = 4.546 L
- 1 cup = 236.6 ml
- 1 fl oz = 29.57 ml
Liters to US Gallons Conversion Table
| l | gal |
|---|---|
| 1 | 0.2642 |
| 2 | 0.5283 |
| 5 | 1.3209 |
| 10 | 2.6417 |
| 20 | 5.2834 |
| 30 | 7.9252 |
| 40 | 10.5669 |
| 50 | 13.2086 |
| 60 | 15.8503 |
| 75 | 19.8129 |
| 100 | 26.4172 |
| 150 | 39.6258 |
| 200 | 52.8344 |
| 500 | 132.086 |
| 1000 | 264.1721 |
About This Conversion
Liters to US gallons converts a metric capacity into the unit American pricing and equipment use: fuel, aquariums, water tanks, paint. One liter is 0.264172 US gallons, so roughly a quarter of a gallon.
Aquariums are a case where the rounding is worth avoiding. A "20 gallon" tank is a manufacturing size of about 75.7 L, and dosing water treatments by a converted-and-rounded volume gets the concentration wrong. Use the measured volume, not the marketed one.
Frequently Asked Questions
How many US gallons is a liter?
One liter is 0.264172 US gallons.
How many gallons is 50 liters?
50 liters is 13.21 US gallons.
How many liters is a 20 gallon tank?
20 US gallons is 75.71 liters.
How do I estimate liters to gallons in my head?
Divide by four and subtract a little. For 50 L: 12.5 as a first guess, against a true 13.2 gallons.
Worth Knowing
US Gallon vs Imperial Gallon
A US gallon is 3.785411784 litres and an imperial (UK) gallon is 4.54609 litres, making the imperial gallon about 20.1 percent larger.
Cup Sizes Explained
A US customary cup is 236.59 mL, a US legal cup is 240 mL, a metric cup is 250 mL and a historic imperial cup is 284 mL.
Fluid Ounce vs Ounce
A US fluid ounce is 29.5735 millilitres of volume, while an ounce is 28.3495 grams of mass; there is no fixed conversion between them.
Cups to Grams for Baking
One US cup holds about 125 g of plain flour, 200 g of granulated sugar, 227 g of butter and 340 g of honey.