Liters to Gallons Calculator
When a spec sheet lists a fluid volume in liters and you need to purchase the equivalent in US gallons, this calculator bridges the gap. It is especially handy for transformer oil, generator coolant, and any fluid system where metric capacities must be matched with imperial supply.
Type in a liter value and see the US gallon and quart equivalents instantly. The calculator accepts any positive number, including decimals.
Conversion Formula
gallons = liters ÷ 3.78541
1 liter = 0.264172 US gallons
To get quarts, multiply gallons by 4. For example, 20 liters equals 5.283 gallons, or about 21.13 quarts.
Frequently Asked Questions
How many gallons are in one liter?
One liter equals approximately 0.264172 US gallons. This is the inverse of the factor 3.78541 liters per gallon. To convert liters to gallons, divide the liter value by 3.78541.
Why would I need to convert liters to gallons?
You may need this conversion when equipment manuals list fluid capacities in liters but local suppliers sell fluids by the gallon. It is also useful when interpreting metric specifications for transformers, generators, or cooling systems on US job sites.
What is the difference between a liter and a quart?
A liter is a metric unit equal to 1,000 milliliters (about 33.814 fluid ounces). A US quart is 32 fluid ounces (0.946353 liters). So one liter is slightly more than one quart, about 5.7% larger.