Standard Water Bottle
500 mL = 0.5 L = 16.91 fl oz = 2.11 cups.
Volume Unit Converter
Convert between liters, milliliters, gallons, quarts, pints, cups, fluid ounces, and tablespoons. Pick any source unit and see all equivalent values instantly.
Input and Focus Result
Enter a value once and use the highlighted result for your primary target conversion.
This tool uses US customary units for gallon, quart, pint, cup, fluid ounce, and tablespoon.
Primary Conversion
-
Enter a value to see the conversion formula.
All Converted Values
Tap any value to copy it. The source unit remains highlighted for context.
Practical Reference Points
Use these quick anchors to sanity-check your conversions in daily tasks.
Measuring Cup
1 cup = 236.59 mL = 0.2366 L = 8 fl oz.
US Gallon Jug
1 gallon = 3.785 L = 128 fl oz = 16 cups.
Kitchen Spoon
1 tablespoon = 14.79 mL and 16 tbsp = 1 cup.
Frequently Asked Questions
How many milliliters are in a liter?
There are exactly 1,000 milliliters (mL) in 1 liter (L).
How many cups are in a gallon?
There are 16 US cups in 1 US gallon.
What is the difference between a US gallon and an imperial gallon?
A US gallon is 3.785 liters. An imperial gallon is 4.546 liters, about 20 percent larger. This converter uses US customary units.
How many tablespoons are in a cup?
There are 16 US tablespoons in 1 US cup.
How do I convert fluid ounces to milliliters?
Multiply US fluid ounces by 29.5735. Example: 8 fl oz x 29.5735 = 236.6 mL.
Is a fluid ounce the same as an ounce?
No. A fluid ounce measures volume, while an ounce (oz) measures weight.
How many liters are in a gallon?
One US gallon equals approximately 3.785 liters.
Does this converter store any data?
No. All calculations run in your browser and no data is sent to a server.
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Volume Converter FAQ
How many milliliters are in a liter?
There are exactly 1,000 milliliters (mL) in 1 liter (L).
How many cups are in a gallon?
There are 16 US cups in 1 US gallon.
What is the difference between a US gallon and an imperial gallon?
A US gallon is 3.785 liters. An imperial gallon is 4.546 liters, about 20 percent larger. This converter uses US customary units.
How many tablespoons are in a cup?
There are 16 US tablespoons in 1 US cup.
How do I convert fluid ounces to milliliters?
Multiply US fluid ounces by 29.5735. Example: 8 fl oz x 29.5735 = 236.6 mL.
Is a fluid ounce the same as an ounce?
No. A fluid ounce measures volume, while an ounce (oz) measures weight.
How many liters are in a gallon?
One US gallon equals approximately 3.785 liters.
Does this converter store any data?
No. All calculations run in your browser and no data is sent to a server.