20 liters to US gallons
20 liters = 5.2834 US gallons
Formula: US gallons = liters x 0.2642
Twenty liters is the size of a standard jerry can, and converting it to US gallons helps Americans estimate fuel and water quantities.
How to Convert liters to US gallons
Liters and US gallons relate through an exact definition: one US gallon is exactly 231 cubic inches, which equals exactly 3.785411784 liters. So one liter is about 0.2641720524 US gallons, the reciprocal of that exact figure.
The formula is US gallons = liters x 0.2642. Multiply your value by the factor: 20 x 0.2642 = 5.2834 US gallons.
The reverse is just as direct: 5.2834 US gallons equals 20 liters. That symmetry is a quick way to sanity-check any conversion you make.
liters to US gallons Conversion Table
Use this table to read off nearby values at a glance. The highlighted row is the 20-liters conversion from this page.
| liters | US gallons |
|---|---|
| 1 | 0.2642 |
| 2 | 0.5283 |
| 3 | 0.7925 |
| 4 | 1.0567 |
| 5 | 1.3209 |
| 6 | 1.585 |
| 7 | 1.8492 |
| 8 | 2.1134 |
| 9 | 2.3775 |
| 10 | 2.6417 |
| 20 | 5.2834 |
Reverse: US gallons to liters
Need to go the other way? 5.2834 US gallons converts back to 20 liters. For the full breakdown in that direction, see 20 US gallons to liters.
Frequently Asked Questions
How many US gallons are in 20 liters?
20 liters holds 5.2834 US gallons. This uses the US liquid gallon, defined as exactly 231 cubic inches, which is 3.785411784 liters.
Is this a US gallon or a UK imperial gallon?
This conversion uses the US liquid gallon. The UK imperial gallon is larger, about 4.546 liters, so British figures will differ. Always check which gallon a recipe or fuel reading refers to.
What is 5.2834 US gallons back in liters?
Reverse it and you return to 20 liters. The unit conversion calculator linked below switches between liters and gallons for any value.
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Disclaimer: This calculator is for informational and educational purposes only. Results are estimates and may not reflect exact values.
Last updated: June 13, 2026