Liters to Gallons Converter
Liters to gallons converter
Convert instantly between liters and US/Imperial gallons.
Exact legal factors stay visible for trust and quick checking.
Gallon standard
US and Imperial gallons are different sizes.
From
To
Exact basis: 1 US gal = 3.785411784 L and 1 Imperial gal = 4.54609 L. Commas and scientific notation are supported (for example 1,234.5 or 1e-3).
Result updates automatically when value, direction, gallon standard, or precision changes.
Advanced options
Batch conversion
Convert multiple values only when you need them, without crowding the main workflow.
Examples
Converted volume
0.2642 US gal
Uses US liquid gallons at 4-decimal precision.
0.2642 US gal
Direction
L to gal
Precision
4 decimals
US liquidConversion details
Formula and exact relation
- 1 L = 0.264172052358 US gal
- 1 US gal = 3.785411784 L
Formula form: US gal = L ÷ 3.785411784. Display rounding follows your selected precision and does not change the base conversion math.
Context outputs
Liters
1 L
US liquid gallons
0.2642 US gal
Imperial gallons
0.22 Imp gal
Common liter conversions
US and Imperial results stay visible side by side so the chosen standard never gets ambiguous.
US liquid: 1 gal = 3.785411784 L.
Imperial (UK): 1 gal = 4.54609 L.
Formula
US gallons = liters / 3.785411784; Imperial gallons = liters / 4.54609 \text{Imp gal} = \frac{\text{L}}{4.54609} \text{L} = \text{gal} \times \text{liters per gallon} Symbol legend
| Symbol | Meaning | Unit | Copy |
|---|---|---|---|
\text{L} | Volume in liters | L | |
\text{US gal} | US liquid gallons | US gal | |
\text{Imp gal} | Imperial or UK gallons | Imp gal |
- Choose US liquid gallons or Imperial (UK) gallons before converting.
- Divide liters by 3.785411784 for US gallons or 4.54609 for Imperial gallons.
- For the reverse direction, multiply gallons by the selected liters-per-gallon factor.
Example
Worked example: 20 L to gal
- 1 20 / 3.785411784 = 5.283441047
- 2 Selected standard = US liquid gallon
- 3 Rounded to four decimals = 5.2834 US gal
20 liters is about 5.2834 US gallons.
How
- Choose US liquid or Imperial (UK) gallons.
- Enter a non-negative volume in liters.
- Use the swap control to convert gallons back to liters without losing the current quantity.
- Copy the result or detailed report when you need to share the selected gallon standard.
Avoid
- Leaving the gallon standard implicit when sharing a result.
- Multiplying instead of dividing for this direction.
- Rounding the conversion factor before completing the calculation.
FAQ
Does this use US or Imperial gallons?
Both are supported. US liquid gallons are the default at exactly 3.785411784 liters per gallon; Imperial gallons use exactly 4.54609 liters per gallon.
Can I convert decimal liters?
Yes. Decimal, comma-formatted, and scientific-notation inputs are supported.
Do you support reverse gallons to liters?
Yes. Use the swap control and the current converted amount moves into the reverse input so the physical volume is preserved, then copy the result or detailed report if needed.
Switch
Switch12
No match.