Aisha K.
Mar 12, 2026
Clean layout and the results update instantly. Exactly what I needed for a quick planning check.
Unit Converters
Liters to Gallons Converter (L to gal)
US gallons = liters ÷ 3.785411784.
Car tanks, paint, and aquariums. This is the US liquid gallon (3.785 L), not the UK gallon (4.546 L). Divide liters by 3.785. A 50 L tank is 13.2 US gal. Using the UK gallon will short you fuel.
Liters
Going the other way? Open the reverse converter
L → gal
13.2086 gal
20 L of paint → 5.28 US gal. 75 L tank → 19.8 gal.
- You typed
- 50 L
- One gal is
- 3.7854 L
- How it’s calculated
- US gallons = liters ÷ 3.785411784.
Plain-English guide
Terms & how it works
Confused by a field? Read the short definitions here while you use the tool.
Liters
The “Liters” value used in this tool’s formula. Adjust it to see results update live.
How this calculator works
Car tanks, paint, and aquariums. This is the US liquid gallon (3.785 L), not the UK gallon (4.546 L). Divide liters by 3.785. A 50 L tank is 13.2 US gal. Using the UK gallon will short you fuel. US gallons = liters ÷ 3.785411784. Example: 20 L of paint → 5.28 US gal. 75 L tank → 19.8 gal.
US gallons = liters ÷ 3.785411784.
Example: 20 L of paint → 5.28 US gal. 75 L tank → 19.8 gal.
When to use this Liters to Gallons
Common use cases
- Car tanks, paint, and aquariums. This is the US liquid gallon (3.785 L), not the UK gallon (4.546 L). Divide liters by 3.785. A 50 L tank is 13.2 US gal. Using the UK gallon will short you fuel.
- Sanity-check with this case: 20 L of paint → 5.28 US gal. 75 L tank → 19.8 gal.
- The relationship is: US gallons = liters ÷ 3.785411784.
Localized examples
- Unit Converters: the example on this page uses the same formula as the widget.
What you get
- Fields: Liters
- US gallons = liters ÷ 3.785411784.
- Example on the page: 20 L of paint → 5.28 US gal. 75 L tank → 19.8 gal.
How to Convert Liters to Gallons Step-by-Step
- 1Enter Liters. Use the values you have, not a catalog average, unless that is all you know.
- 2US gallons = liters ÷ 3.785411784.
- 3Worked case: 20 L of paint → 5.28 US gal. 75 L tank → 19.8 gal.
- 4Check which dictionary the other person is using — US or UK, decimal or 1,024 — then trust the number.
Governing formula
US gallons = liters ÷ 3.785411784.
20 L of paint → 5.28 US gal. 75 L tank → 19.8 gal.
Example: set Liters = 50, then read the result.
Variable definitions
- value
Liters
The “Liters” field. Default 50; typical range 0–100000.
- The conversion (US gallons = liters ÷ 3.785411784.) does not pick US vs UK gallons, SI vs binary megabytes, or Mach at altitude for you. Read the footnote on the page.
- Nothing here is uploaded for the calculation itself.
Frequently Asked Questions
UK gallon is larger. This page is US. Say so on a ferry.
Related calculators
Unit Converters
- Gallons to LitersFill-up math when the pump is in gallons and the car computer is in liters. Multiply US gallons by 3.785. A 15 gal fill is 56.8 L. UK gallons would overstate that by about 20%.
- GPM to L/min1 US gpm = 3.785 L/min. A 2.5 gpm showerhead is 9.5 L/min. UK gallons are larger. Fixture laws care about the number on the aerator, not the pipe diameter.
- Imperial Gallons to LitersThe UK (imperial) gallon is exactly 4.54609 L. The US liquid gallon is 3.785411784 L. A British 8-gallon beer firkin and a US 5-gallon bucket are not cousins. If the pump is in Canada or the UK, this is the gallon.
- Bushels to LitersA US bushel is 35.239 L of volume. Grain “bushels” on a scale ticket are often a weight standard (56 lb of corn, etc.), not a filled basket. This page is the struck volume bushel. Ask which one the elevator meant.
- Cubic Inches to Cubic CentimetersEngine displacement: a “350” small-block is 350 in³, about 5.7 L (5,735 cc). Multiply in³ by 16.387. One liter is 1,000 cm³. This is why 5.0 L and 302 in³ show up on the same valve cover.
- Cups to MillilitersUS customary cup is 240 mL in nutrition labels and 236.6 mL in the true fluid-cup (8 fl oz). This page uses the 8 fl oz cup (236.6 mL). A “metric cup” in Australia is 250 mL. If the cake falls, check which cup the author owned.
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See what others think about this tool, then leave your own rating to help improve CalculioHub.
4.8
out of 5.0
4 reviews
Daniel R.
Feb 28, 2026
Very usable on mobile. Would love a save/export option later, but the math feels solid.
Priya S.
Feb 3, 2026
The FAQ section answered my questions before I even had to search. Smooth dark mode too.
Marcus L.
Jan 19, 2026
Simple inputs, clear outputs. This replaced three bookmarks I used to juggle.
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