Liters to Gallons Converter
1 liter is about 0.264172 US gallons. To convert liters to gallons, divide by 3.785411784.
Sources: NIST SP 811, NIST Handbook 44, BIPM SI Brochure, UK Weights and Measures Act 1985 Updated
Result
1 L = 0.264172 gal
How to convert liters to gallons
gallons = liters ÷ 3.785411784
1 liter is exactly one cubic decimeter (0.001 cubic meter). 1 US gallon is exactly 231 cubic inches. 1 imperial gallon is exactly 4.54609 liters.
Dividing by 3.785411784 is exact. Written as a multiplication the factor is a repeating decimal, 1 L = 0.2641720523581… gal, so a rounded multiplier such as 0.2642 is slightly off. This converter keeps the exact fraction (125000000/473176473) and rounds only the result it shows.
Worked example: 50 L
- Start with the value in liters: 50 L.
- Divide by 3.785411784, because 1 gallon = 3.785411784 liters: 50 ÷ 3.785411784 = 13.20860262….
- Round to the precision you need: 13.21 gal to two decimals.
Liters and gallons side by side
Liters to gallons chart
Liters from 1 to 100 converted to gallons with the exact factor, shown to five significant digits.
| L | gal |
|---|---|
| 1 | 0.26417 |
| 2 | 0.52834 |
| 3 | 0.79252 |
| 4 | 1.0567 |
| 5 | 1.3209 |
| 6 | 1.585 |
| 7 | 1.8492 |
| 8 | 2.1134 |
| 9 | 2.3775 |
| 10 | 2.6417 |
| 11 | 2.9059 |
| 12 | 3.1701 |
| 13 | 3.4342 |
| 14 | 3.6984 |
| 15 | 3.9626 |
| 16 | 4.2268 |
| 17 | 4.4909 |
| 18 | 4.7551 |
| 19 | 5.0193 |
| 20 | 5.2834 |
| 21 | 5.5476 |
| 22 | 5.8118 |
| 23 | 6.076 |
| 24 | 6.3401 |
| 25 | 6.6043 |
| L | gal |
|---|---|
| 26 | 6.8685 |
| 27 | 7.1326 |
| 28 | 7.3968 |
| 29 | 7.661 |
| 30 | 7.9252 |
| 31 | 8.1893 |
| 32 | 8.4535 |
| 33 | 8.7177 |
| 34 | 8.9818 |
| 35 | 9.246 |
| 36 | 9.5102 |
| 37 | 9.7744 |
| 38 | 10.039 |
| 39 | 10.303 |
| 40 | 10.567 |
| 41 | 10.831 |
| 42 | 11.095 |
| 43 | 11.359 |
| 44 | 11.624 |
| 45 | 11.888 |
| 46 | 12.152 |
| 47 | 12.416 |
| 48 | 12.68 |
| 49 | 12.944 |
| 50 | 13.209 |
| L | gal |
|---|---|
| 51 | 13.473 |
| 52 | 13.737 |
| 53 | 14.001 |
| 54 | 14.265 |
| 55 | 14.529 |
| 56 | 14.794 |
| 57 | 15.058 |
| 58 | 15.322 |
| 59 | 15.586 |
| 60 | 15.85 |
| 61 | 16.114 |
| 62 | 16.379 |
| 63 | 16.643 |
| 64 | 16.907 |
| 65 | 17.171 |
| 66 | 17.435 |
| 67 | 17.7 |
| 68 | 17.964 |
| 69 | 18.228 |
| 70 | 18.492 |
| 71 | 18.756 |
| 72 | 19.02 |
| 73 | 19.285 |
| 74 | 19.549 |
| 75 | 19.813 |
| L | gal |
|---|---|
| 76 | 20.077 |
| 77 | 20.341 |
| 78 | 20.605 |
| 79 | 20.87 |
| 80 | 21.134 |
| 81 | 21.398 |
| 82 | 21.662 |
| 83 | 21.926 |
| 84 | 22.19 |
| 85 | 22.455 |
| 86 | 22.719 |
| 87 | 22.983 |
| 88 | 23.247 |
| 89 | 23.511 |
| 90 | 23.775 |
| 91 | 24.04 |
| 92 | 24.304 |
| 93 | 24.568 |
| 94 | 24.832 |
| 95 | 25.096 |
| 96 | 25.361 |
| 97 | 25.625 |
| 98 | 25.889 |
| 99 | 26.153 |
| 100 | 26.417 |
gallons = liters ÷ 3.785411784. Factors: NIST SP 811, NIST Handbook 44, BIPM SI Brochure, UK Weights and Measures Act 1985. unitcheck.net/volume/liters-to-gallons/
US gallon or imperial gallon?
The converter starts with the US gallon (3.785411784 L, defined through the US gallon of exactly 231 cubic inches). The imperial gallon used in the United Kingdom is 4.54609 L, about 20% larger. Use the switch above the converter if your number comes from a British source.
Going the other way? Use the Gallons to Liters converter.
Frequently asked questions
How many gallons are in 1 liter?
1 liter is about 0.264172 US gallons. 1 US gallon is exactly 231 cubic inches.
How do I convert liters to gallons?
Divide by 3.785411784: gallons = liters ÷ 3.785411784. For example, 50 L = 13.21 gal.
How many liters are in 1 gallon?
1 US gallon is exactly 3.785411784 liters. To go the other way, use the gallons to liters converter.
Is the L to gal conversion exact?
The relationship is exact (1 gal = 3.785411784 L), but 1 ÷ 3.785411784 is a repeating decimal, 0.2641720524…. The converter works with the exact fraction and rounds only the displayed result, so it does not pick up the small error a rounded multiplier would cause.
Sources
- NIST Special Publication 811, Guide for the Use of the International System of Units, Appendix B.8: Factors for Units Listed Alphabetically — exact factors are printed in bold in the NIST table (checked October 12, 2026)
- NIST Handbook 44 (2026), Appendix C: General Tables of Units of Measurement — US customary units and their exact relationships (checked October 12, 2026)
- BIPM, The International System of Units (SI Brochure), 9th edition — defines the SI units, the prefixes and the units accepted for use with the SI
- Weights and Measures Act 1985 (UK), Schedule 1: Definitions of Units of Measurement — imperial gallon, pint and fluid ounce, stone and long ton (checked October 12, 2026)