Liters to gallons converter
1 liter is 0.264172 US gallons. To convert liters to gallons, divide the liters by 3.785411784.
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2 liters =
0.528344gal
Formula: gal = L ÷ 3.785411784
Show the steps
- Definition: 1 L = 0.001 m³; 1 US gallon = 231 in³ = 3.785411784 L exactly
- 2 L ÷ 3.785411784 = 0.528344 gal
Definitions used: 1 L = 0.001 m³; 1 US gallon = 231 in³ = 3.785411784 L exactly.
Source: NIST SP 811, Appendix B.8 and NIST Handbook 44 (2026), Appendix C, checked on .
How to convert liters to US gallons
Divide the value in liters by 3.785411784. The factor follows from the definitions: 1 L = 0.001 m³, and 1 US gallon = 231 in³ = 3.785411784 L exactly.
gal = L ÷ 3.785411784
Worked example: 2 L to gal
- Definition: 1 L = 0.001 m³; 1 US gallon = 231 in³ = 3.785411784 L exactly
- 2 L ÷ 3.785411784 = 0.528344 gal
- Answer: 2 L = 0.528344 gal.
Liters to US gallons chart
| Liters (L) | US gallons (gal) |
|---|---|
| 0.5 | 0.132086 |
| 1 | 0.264172 |
| 1.5 | 0.396258 |
| 2 | 0.528344 |
| 3 | 0.792516 |
| 3.785 | 0.999891 |
| 4 | 1.05669 |
| 5 | 1.32086 |
| 10 | 2.64172 |
| 15 | 3.96258 |
| Liters (L) | US gallons (gal) |
|---|---|
| 20 | 5.28344 |
| 25 | 6.6043 |
| 40 | 10.5669 |
| 50 | 13.2086 |
| 60 | 15.8503 |
| 75 | 19.8129 |
| 100 | 26.4172 |
| 200 | 52.8344 |
| 500 | 132.086 |
| 1,000 | 264.172 |
Values rounded to 6 significant digits. Type any other number in the converter at the top of the page.
How many liters are in a gallon?
A US gallon is exactly 3.785411784 liters, because it is defined as 231 cubic inches. An imperial (UK) gallon is larger: exactly 4.54609 liters, about 20% more. 1 liter is 0.219969 imperial gallons.
How many 500 mL water bottles make a gallon?
About seven and a half. One US gallon is 3,785 mL, and 3,785 ÷ 500 = 7.57 bottles. Four 1-liter bottles are 1.057 gallons, slightly more than a gallon.
More questions about liters and US gallons
How many gallons is 2 liters?
2 liters is 0.528344 US gallons, a little over half a gallon.
How many gallons is 20 liters?
20 liters is 5.28344 US gallons (4.39938 imperial gallons).
Does this page use US or UK gallons?
US liquid gallons. For imperial gallons choose “imperial gallon” on the volume page; the difference is about 20%.
How do I estimate liters in gallons?
Divide by 4 and add 5%. 40 L ÷ 4 = 10, plus 5% = 10.5 gal; the exact value is 10.57 gal.
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Sources and limits
- NIST SP 811, Appendix B.8
NIST Special Publication 811, Guide for the Use of the SI, Appendix B.8: Factors for Units Listed Alphabetically (page updated August 18, 2025).
National Institute of Standards and Technology. Edition or effective date: . Text in force when checked on .
- NIST Handbook 44 (2026), Appendix C
NIST Handbook 44-2026, Appendix C: General Tables of Units of Measurement.
National Institute of Standards and Technology. Edition or effective date: . Text in force when checked on .
This is a calculation aid, not an official measurement service. Results are rounded to 6 significant digits for display. For trade, engineering, medical dosing or legal documents, confirm the figure in the official source. Nothing you type leaves your browser.