Liters to Gallons
Convert liter to us gallon instantly — type a value and read the result, with the exact formula shown.
Reviewed by the CalcCafe editorial team · Last updated 1 July 2026 · How we test our tools
Example
1 L = 0.2641721 gal, 5 L = 1.32086 gal, 10 L = 2.641721 gal.
Common conversions: liter to us gallon
Quick reference for the L → gal values you are most likely to need, computed with the exact factor the converter above uses. It includes the specific values people most often look up (4 L, 10 L, 200 L, 20 L, 5 L). See also the reverse converter: US gallon to Liter.
| Liter (L) | US gallon (gal) |
|---|
| 1 L | 0.264172 gal |
| 2 L | 0.528344 gal |
| 3 L | 0.792516 gal |
| 4 L | 1.0567 gal |
| 5 L | 1.3209 gal |
| 10 L | 2.6417 gal |
| 15 L | 3.9626 gal |
| 20 L | 5.2834 gal |
| 25 L | 6.6043 gal |
| 30 L | 7.9252 gal |
| 40 L | 10.5669 gal |
| 50 L | 13.2086 gal |
| 60 L | 15.8503 gal |
| 70 L | 18.492 gal |
| 75 L | 19.8129 gal |
| 80 L | 21.1338 gal |
| 90 L | 23.7755 gal |
| 100 L | 26.4172 gal |
| 150 L | 39.6258 gal |
| 200 L | 52.8344 gal |
| 250 L | 66.043 gal |
| 500 L | 132.086 gal |
| 1,000 L | 264.1721 gal |
US gallon to Liter
| US gallon (gal) | Liter (L) |
|---|
| 1 gal | 3.7854 L |
| 5 gal | 18.9271 L |
| 10 gal | 37.8541 L |
| 50 gal | 189.2706 L |
| 100 gal | 378.5412 L |
How it works
US gallon = Liter × 0.2641721. Every value is converted through a single liter base unit using internationally defined conversion factors, so any from/to pair stays consistent.
Good to know
Converting liters to US gallons comes up constantly when an American audience meets a product built for the rest of the world: reading a car's fuel-tank capacity printed in liters, sizing an imported aquarium or water heater, scaling a metric recipe for brewing or canning, or comparing the price of bottled water and fuel across borders. Because almost every country outside the United States lists volume in liters, this is one of the most-searched volume conversions for shoppers, travelers, and DIYers.
The liter is a metric unit, defined today as exactly one cubic decimeter (1,000 cubic centimeters), and it scales cleanly by powers of ten with milliliters and cubic meters. The US gallon is an old imperial-era unit that the United States froze at a specific value — 231 cubic inches — long before the British Empire redefined its own gallon. That historical split is why there are two gallons in the world, and this page uses the smaller US liquid gallon.
For quick mental math, remember that there are a little under four liters in a US gallon, so liters divided by four gives a close gallon estimate (10 L ≈ 2.5 gal, the exact figure being 2.64). Going the other way, multiply gallons by four and trim a touch. A handy anchor: a 2-liter soda bottle is just over half a US gallon (0.528 gal).
The most common mistake is mixing up the US gallon with the UK (imperial) gallon, which is about 20% larger at 4.546 liters — so a "5 gallon" British drum holds noticeably more than a US one. A second pitfall is conflating US liquid gallons with US dry gallons; this converter handles only the liquid measure, which is the one used for fuel, milk, and beverages.
Frequently asked questions
How do you convert liter to us gallon?
Multiply the number of liters by 0.2641721 to get us gallons. For example, 1 L = 0.2641721 gal.
What is 1 liter in us gallons?
1 liter equals 0.2641721 us gallons (1 L = 0.2641721 gal).
How many liters are in 1 us gallon?
There are 3.785412 liters in 1 us gallon.
Is this converter free and private?
Yes. It runs entirely in your browser, so your inputs never leave your device, there is no sign-up, and it works offline once loaded.
Are the conversions exact?
Conversions use internationally defined factors and are exact where the definitions are exact (for example, 1 inch = 2.54 cm). Displayed results are rounded for readability.
People also ask
How many liters are in a US gallon?
There are 3.785412 liters in one US liquid gallon. A US gallon is defined as exactly 231 cubic inches.
Is a US gallon the same as a UK gallon?
No. A US liquid gallon is 3.785 liters, while a UK (imperial) gallon is larger at about 4.546 liters — roughly 20% bigger. This converter uses the US gallon.
How many gallons is a 2 liter bottle?
A 2-liter bottle holds about 0.528 US gallons, just over half a gallon (2 × 0.2641721 = 0.5283 gal).
How do I convert liters to gallons in my head?
Divide the number of liters by about 3.8, or roughly by 4 for a quick low estimate. For example, 20 L ÷ 3.785 ≈ 5.28 gallons.
How many liters is a 5 gallon water jug?
A 5 US-gallon jug holds about 18.93 liters (5 × 3.785412). If it is a UK 5-gallon container instead, it holds about 22.7 liters.
What is 50 liters in gallons?
50 liters equals about 13.21 US gallons (50 × 0.2641721 = 13.209 gal). That is a typical mid-size car fuel tank.
Why are there two different gallon sizes?
The US kept the old English wine gallon of 231 cubic inches (3.785 L), while Britain redefined its imperial gallon in 1824 based on 10 pounds of water (4.546 L). The two never re-aligned, so US and UK gallons differ.
How many gallons is 1 liter of gas?
One liter of fuel is about 0.264 US gallons, so it takes nearly four liters (3.785) to make a single US gallon.
Related calculators
Sources & references
These tools follow our methodology and provide educational estimates only — verify important figures with a qualified professional.