Convert liters, gallons, cups, ml, fluid ounces. Free volume converter.
Volume conversions are vital in cooking, chemistry, medicine, and everyday liquid measurements. This converter handles liters, milliliters, gallons, quarts, pints, cups, fluid ounces, tablespoons, and teaspoons, covering both metric and US customary units. Because the US gallon differs from the imperial gallon used in the UK and Canada, knowing which system your recipe or instruction set uses prevents significant measurement errors. This tool uses US customary measurements as the default, which is the system most commonly encountered in online recipes and American consumer products.
Choose source and target volume units, enter a value, and the result appears instantly. All units are stored as factors relative to one liter. Your input is converted to liters using the source factor, then to the target unit by dividing by the target factor. This ensures accuracy across all possible unit combinations without requiring a separate conversion factor for each pair.
Home cooks convert between cups, milliliters, and tablespoons for recipes from different countries. Bartenders convert cocktail recipes between metric and imperial measurements. Pharmacists verify medication dosages in milliliters. Chemistry students convert between liters and milliliters for lab experiments. Aquarium hobbyists calculate tank volumes in gallons and liters.
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One US cup equals approximately 236.6 milliliters. For cooking, 240 ml is a commonly used rounded value. Note that the metric cup used in Australia and some other countries equals exactly 250 ml, so always check which cup measurement your recipe uses.
A US gallon equals approximately 3.785 liters, while an imperial gallon used in the UK equals approximately 4.546 liters. The imperial gallon is about 20 percent larger than the US gallon.
One US cup contains 16 tablespoons. Each tablespoon equals 3 teaspoons, so one cup also equals 48 teaspoons. These relationships are standardized in US cooking measurements.
One US fluid ounce equals approximately 29.57 milliliters. For quick approximation, multiply fluid ounces by 30. For precision in medicine or chemistry, use the exact factor of 29.5735 ml per fluid ounce.
Yes, a US dry cup and a US liquid cup are the same volume, both equaling approximately 236.6 ml. However, they are measured differently: liquid cups have a spout and are filled to a line, while dry cups are filled and leveled with a straight edge.