gallons to liters Converter
Unit Converter
Instant · Precise · Universal
47 units available
6 categories total
How to Convert Gallon (US) to Liter
To liters: multiply by 3.785. To UK gallons: multiply by 0.832674. To cubic meters: multiply by 0.003785.
1 US gal = 4 US qt = 8 US pt = 16 US cups = 128 US fl oz = 3.785411784 L.
For example, 1 Gallon (US) (gal (US)) = 3.785411784 Liter (L).
Gallon (US) to Liter — Common Values
| Gallon (US) (gal (US)) | Liter (L) |
|---|---|
| 0.1 | 0.3785411784 |
| 0.5 | 1.892705892 |
| 1 | 3.785411784 |
| 2 | 7.570823568 |
| 5 | 18.92705892 |
| 10 | 37.85411784 |
| 25 | 94.6352946 |
| 50 | 189.2705892 |
| 100 | 378.5411784 |
| 500 | 1892.705892 |
| 1000 | 3785.411784 |
About Gallon (US) (gal (US))
Definition
The US gallon is a unit of volume equal to 128 US fluid ounces, or approximately 3.785 liters, used for large liquid volumes.
Mathematical Relationship
1 US gal = 4 US qt = 8 US pt = 16 US cups = 128 US fl oz = 3.785411784 L.
Conversion Formula
To liters: multiply by 3.785. To UK gallons: multiply by 0.832674. To cubic meters: multiply by 0.003785.
Practical Applications
Fuel prices ($/gal), milk jugs, water cooler bottles, swimming pool chemicals, and paint quantities.
Interesting Facts
The US gallon is smaller than the UK gallon: 3.785 L vs. 4.546 L. This means UK fuel economy figures look better by number!
Common Mistakes
Confusing US and UK gallons — UK gallons are 20% larger. Fuel economy (mpg) differs significantly between the two systems.
Educational Tips
1 gallon ≈ 3.8 liters ≈ a large milk jug. 4 quarts = 1 gallon. A gallon of water weighs about 8.3 pounds.
About Liter (L)
Definition
The liter is a metric unit of volume equal to 1,000 cubic centimeters (1 dm³), used worldwide for measuring liquid volumes.
Mathematical Relationship
1 L = 1 dm³ = 10⁻³ m³ = 1,000 mL = 1,000 cm³. One cubic meter contains 1,000 liters.
Conversion Formula
To gallons (US): multiply by 0.264172. To quarts (US): multiply by 1.05669. To fluid ounces (US): multiply by 33.814.
Practical Applications
Fuel volumes, milk/juice containers, water bottles, engine oil, swimming pool volumes, and cooking.
Interesting Facts
One liter of water weighs almost exactly 1 kilogram. The word 'liter' comes from an old French unit called the 'litron' (about 0.831 L).
Common Mistakes
Assuming 1 liter = 1 US quart — a liter is slightly larger (1 L ≈ 1.057 qt). Also, confusing 'L' with 'lb' (pound).
Educational Tips
A liter is a little over a US quart. A 2-liter soda bottle and a 1-liter water bottle are great visual references.