Volume Converter - Liters to Gallons, ml to Cups
Convert between liters, gallons, milliliters, cups, fluid ounces, pints, quarts, tablespoons, and teaspoons. Enter a value in the calculator below, or browse the popular converters and reference table further down.
Converting Volume and Capacity Units
Volume conversion is used daily in cooking, fuel measurement, and liquid product packaging. The metric system uses liters and milliliters, while the US customary system uses gallons, quarts, pints, cups, fluid ounces, tablespoons, and teaspoons. Note that US gallons (3.785 liters) and imperial UK gallons (4.546 liters) are different sizes.
The most common conversions are liters to gallons, ml to cups, and fluid ounces to ml for recipes. All converters on this page use US customary definitions by default, with clear formulas so you know exactly how each result is calculated.
Units Covered
Popular Converters
Common Conversion Values
| Value | L → gal | mL → cup | fl oz → mL | L → qt |
|---|---|---|---|---|
| 1 | 0.2642 | 0.004227 | 29.57 | 1.06 |
| 5 | 1.32 | 0.0211 | 147.87 | 5.28 |
| 10 | 2.64 | 0.0423 | 295.74 | 10.57 |
| 25 | 6.6 | 0.1057 | 739.34 | 26.42 |
| 50 | 13.21 | 0.2113 | 1,478.68 | 52.83 |
| 100 | 26.42 | 0.4227 | 2,957.35 | 105.67 |
| 250 | 66.04 | 1.06 | 7,393.38 | 264.17 |
| 500 | 132.09 | 2.11 | 14,786.76 | 528.34 |
How These Conversions Work
Each unit pair has a fixed conversion factor defined by international standards. Multiply or divide by the factor to convert. Here are three examples:
10 L = 2.64 gal. Multiply by 0.264172. L to gal converter.
1 gal = 3.79 L. Multiply by 3.785412. gal to L converter.
10 mL = 0.0423 cup. Multiply by 0.00422675. mL to cup converter.
Results above are rounded for readability. Each converter page shows the full-precision factor. For complete formulas with worked examples, visit the formulas hub.