Volume Converter
Convert volume between liters, milliliters, cups, tablespoons, fluid ounces, pints, quarts, and US gallons.
Independently verified for accuracy
Calculator by Toolsloft ↗- Result
- 3.785412 Liters (L)
- Conversion
- 1 US gallons (gal) = 3.785412 Liters (L)
Convert volume between metric and US units: milliliters, liters, cubic meters, teaspoons, tablespoons, fluid ounces, cups, pints, quarts, and gallons. It is built for the conversions that come up in cooking and shopping, like cups to milliliters or gallons to liters, and updates as you type.
How this is calculated
Cups, pints, quarts, gallons, and spoons here are US customary units, all defined from the US gallon of exactly 3.785411784 liters (231 cubic inches). One gallon is 128 fluid ounces, a cup is 8 fluid ounces, and a tablespoon is 3 teaspoons. Each value is converted to liters and then to the target unit, so the answer follows the legal definitions rather than a rounded chart.
How to use
- Enter the volume you want to convert.
- Choose the unit you have now.
- Choose the unit you want the result in.
- Read the converted volume, or press Swap units to reverse it.
Examples
- Gallons to liters:
1 US gal = 3.785412 L - Cups to milliliters:
1 US cup = 236.588237 ml - Tablespoons to teaspoons:
1 tbsp = 3 tsp
FAQ
- Are these US or imperial cups and gallons?
- They are US customary units. A US gallon is 3.785412 liters and a US cup is about 236.59 milliliters. The imperial gallon used in the UK is larger, about 4.546 liters, so pick the right chart for a UK recipe.
- How many teaspoons are in a tablespoon?
- One US tablespoon is exactly 3 teaspoons, or about 14.79 milliliters. A teaspoon is about 4.93 milliliters.