Instant · Precise · Universal
47 units available
6 categories total
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)) = 3.785412e-9 Gigaliter (GL).
| Gallon (US) (gal (US)) | Gigaliter (GL) |
|---|---|
| 0.1 | 3.785412e-10 |
| 0.5 | 1.892706e-9 |
| 1 | 3.785412e-9 |
| 2 | 7.570824e-9 |
| 5 | 1.892706e-8 |
| 10 | 3.785412e-8 |
| 25 | 9.463529e-8 |
| 50 | 1.892706e-7 |
| 100 | 3.785412e-7 |
| 500 | 0.000001892705892 |
| 1000 | 0.000003785411784 |
The US gallon is a unit of volume equal to 128 US fluid ounces, or approximately 3.785 liters, used for large liquid volumes.
1 US gal = 4 US qt = 8 US pt = 16 US cups = 128 US fl oz = 3.785411784 L.
To liters: multiply by 3.785. To UK gallons: multiply by 0.832674. To cubic meters: multiply by 0.003785.
Fuel prices ($/gal), milk jugs, water cooler bottles, swimming pool chemicals, and paint quantities.
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!
Confusing US and UK gallons — UK gallons are 20% larger. Fuel economy (mpg) differs significantly between the two systems.
1 gallon ≈ 3.8 liters ≈ a large milk jug. 4 quarts = 1 gallon. A gallon of water weighs about 8.3 pounds.
The gigaliter is a unit of volume equal to one billion liters (10⁹ L), or one million cubic meters.
1 GL = 10⁹ L = 10⁶ m³ = 1,000 ML. One teraliter = 1,000 GL.
To liters: multiply by 10⁹. To cubic meters: multiply by 10⁶. To megalliters: multiply by 1,000.
Reporting dam capacities (e.g., Hoover Dam stores ~35 GL), regional water budgets, and flood volumes.
Sydney Harbour holds approximately 500 GL of water. Lake Mead (behind Hoover Dam) has a capacity of about 35,200 GL.
Underestimating the scale — 1 GL = one billion liters = one million cubic meters. It is an enormous volume.
Think 'giga = billion.' 1 GL would fill 400 Olympic pools. It's the unit for dams and large reservoirs.



© 2026 UntangleTools. All Rights Reserved.