16 liters is equal to approximately 4.2268 gallons.
To convert liters to gallons, you multiply the number of liters by the conversion factor of about 0.264172. This factor is based on the relationship between the metric and US customary units. So, 16 liters times 0.264172 gives the equivalent volume in gallons.
Conversion Tool
Result in gallon:
Conversion Formula
The formula to convert liters to gallons is:
Gallons = Liters × 0.264172
This conversion factor (0.264172) represents how many gallons are in one liter. It comes from the definition that one US gallon equals 3.78541 liters, so dividing 1 by 3.78541 gives approximately 0.264172.
Example calculation for 16 liters:
- Start with 16 liters.
- Multiply by 0.264172: 16 × 0.264172 = 4.226752.
- Rounded to four decimals, the result is 4.2268 gallons.
Conversion Example
- Convert 25 liters to gallons:
- Multiply 25 by 0.264172.
- 25 × 0.264172 = 6.6043 gallons.
- The answer is 6.6043 gallons.
- Convert 7 liters to gallons:
- 7 × 0.264172 = 1.8492 gallons.
- This shows 7 liters equals about 1.849 gallons.
- Convert 40 liters to gallons:
- 40 × 0.264172 = 10.5669 gallons.
- This means 40 liters is 10.5669 gallons.
- Convert 12.5 liters to gallons:
- 12.5 × 0.264172 = 3.3022 gallons.
- So, 12.5 liters equals 3.3022 gallons.
Conversion Chart
The chart below shows liters from -9.0 to 41.0 and their gallon equivalents. Negative values are included for completeness, though in practical use negative volume is uncommon.
| Liters | Gallons |
|---|---|
| -9.0 | -2.3775 |
| -5.0 | -1.3209 |
| 0.0 | 0.0000 |
| 5.0 | 1.3209 |
| 10.0 | 2.6417 |
| 15.0 | 3.9626 |
| 20.0 | 5.2834 |
| 25.0 | 6.6043 |
| 30.0 | 7.9251 |
| 35.0 | 9.2459 |
| 40.0 | 10.5669 |
| 41.0 | 10.8311 |
You can use this chart to quickly find the gallons equivalent of liter values listed. For values in between, interpolation is possible by estimating proportionally between two points.
Related Conversion Questions
- How many gallons are 16 liters exactly?
- What is the gallon equivalent of 16 liters in US measurements?
- Is 16 liters more or less than 4 gallons?
- Can I convert 16 liters to gallons using a simple formula?
- How to convert 16 liters to gallons without a calculator?
- What is 16 liters in gallons for cooking recipes?
- Does 16 liters equal 4 gallons or more?
Conversion Definitions
Liter: The liter is a metric unit of volume equal to one cubic decimeter. It is commonly used to measure liquids and capacity in everyday life and science. One liter equals 1,000 cubic centimeters or about 0.264172 gallons in US customary units.
Gallon: A gallon is a unit of volume used in the US customary and British imperial systems. The US liquid gallon equals 3.78541 liters, and is mostly used for measuring fuel, milk, and larger liquid volumes. Gallons are larger than liters, with 1 gallon roughly 3.785 liters.
Conversion FAQs
Why does the conversion factor from liters to gallons differ between US and UK gallons?
The US liquid gallon is defined as exactly 3.78541 liters, while the UK imperial gallon is defined as 4.54609 liters. Because these units come from different measurement systems, the conversion factor varies depending on which gallon you mean. Usually, US gallons are used in conversion with liters in the US.
Can I convert liters to gallons for dry substances?
Gallons and liters measure volume, not weight, so they can be used for dry substances only if the volume is known. Dry gallons exist but differ from liquid gallons, and the conversion factor for dry gallons is not the same. For dry materials, measuring volume precisely is crucial before converting.
Is the conversion factor always constant?
Yes, the factor 0.264172 for converting liters to US liquid gallons is constant because it is based on exact unit definitions. However, rounding during calculation can cause small differences in the final result displayed. Using more decimal places increases accuracy.
How do temperature and pressure affect liter to gallon conversions?
Volume can change with temperature and pressure, especially for gases, but for liquids, changes are usually small under everyday conditions. The liter and gallon are defined volumes without temperature adjustments, so conversions assume standard conditions.
Are there any tools for quick and easy liter to gallon conversions?
Yes, many online converters and calculators exist that convert liters to gallons instantly. The small JavaScript tool above also does this conversion quickly when you enter a value. Using these tools reduces error from manual calculations.
Last Updated : 22 July, 2025

Sandeep Bhandari holds a Bachelor of Engineering in Computers from Thapar University (2006). He has 20 years of experience in the technology field. He has a keen interest in various technical fields, including database systems, computer networks, and programming. You can read more about him on his bio page.