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Select the direction of conversion.
Enter the volume in US customary cups.
1 cup = 236.588236 mL
Enter the volume in milliliters.
1 mL = 0.00422675 cups
Number of decimal places in results.
Display the formula used in the breakdown.
Display common cup to mL conversions.
Different cup standards used in various contexts.

What Is a Cup?

A cup is a unit of volume commonly used in cooking and baking in the United States and other countries. The US customary cup is defined as exactly 236.588236 milliliters (mL). It is equal to 8 fluid ounces, 16 tablespoons, or 48 teaspoons.

There are different types of cups used in various contexts:

  • US Customary Cup: 236.588 mL — used in US recipes.
  • Metric Cup: 250 mL — used in many other countries.
  • US Legal Cup: 240 mL — used for nutrition labeling.

How Does the Cups to Milliliters Converter Work?

The converter uses the standard conversion factors:

1 US cup = 236.588236 mL

1 mL = 0.00422675 cups

To convert cups to milliliters: mL = cups × 236.588236

To convert milliliters to cups: cups = mL × 0.00422675

Simply enter a value in either cups or milliliters, select the direction of conversion, and the calculator will instantly compute the equivalent volume. You can also choose between different cup standards (US Customary, Metric, or US Legal) for the conversion.

Why Use This Cups to Milliliters Converter?

  • Two-Way Conversion: Convert from cups to mL and from mL to cups.
  • Multiple Cup Standards: Choose between US Customary, Metric, and US Legal cups.
  • Precise Results: Uses the exact conversion factor (1 cup = 236.588236 mL).
  • Reference Table: Quick reference for common kitchen measurements.
  • Free & Private: No registration, no data storage.

Common Kitchen Equivalents

  • 1/4 cup = 59.15 mL = 4 tablespoons
  • 1/3 cup = 78.86 mL = 5 1/3 tablespoons
  • 1/2 cup = 118.29 mL = 8 tablespoons
  • 1 cup = 236.59 mL = 16 tablespoons
  • 2 cups = 473.18 mL = 1 pint
  • 4 cups = 946.35 mL = 1 quart

❓ Cups to Milliliters Converter FAQ

How many milliliters are in a cup?

1 US customary cup = 236.588236 milliliters. For practical cooking purposes, 1 cup is often rounded to 237 mL or 240 mL.

How many cups are in a milliliter?

1 milliliter = 0.00422675 cups. To convert mL to cups, multiply by 0.00422675.

What is the difference between a US cup and a metric cup?

A US customary cup is 236.588 mL. A metric cup is 250 mL. The US Legal cup used for nutrition labeling is 240 mL. This calculator supports all three standards.

What is the formula for converting cups to milliliters?

Milliliters = Cups × 236.588236. For example, 2 cups × 236.588236 = 473.18 mL.

What is the formula for converting milliliters to cups?

Cups = Milliliters × 0.00422675. For example, 500 mL × 0.00422675 = 2.113 cups.

How many mL is 1/2 cup?

1/2 cup = 118.29 mL (US customary) or 125 mL (metric cup).

How many mL is 1/4 cup?

1/4 cup = 59.15 mL (US customary) or 62.5 mL (metric cup).

How many mL is 2/3 cup?

2/3 cup = 157.73 mL (US customary) or 166.67 mL (metric cup).

How many mL is 3/4 cup?

3/4 cup = 177.44 mL (US customary) or 187.5 mL (metric cup).

How many cups are in 1 liter?

1 liter = 4.22675 US cups. This is because 1 L = 1,000 mL and 1 cup = 236.588 mL.

How many tablespoons are in a cup?

There are 16 tablespoons in 1 US customary cup.

How many fluid ounces are in a cup?

There are 8 fluid ounces in 1 US customary cup.

Why is the metric cup 250 mL?

The metric cup is defined as exactly 250 mL in countries that use the metric system. It is a convenient round number that simplifies cooking and baking measurements.

What is the US Legal cup?

The US Legal cup is used for nutrition labeling in the United States. It is defined as 240 mL by US law.

Can I use this calculator for UK recipes?

Yes. While UK recipes typically use metric measurements, you can convert cups to mL using the US customary cup standard. However, note that UK imperial cups (284 mL) are different. This calculator uses US standards.

Is a cup the same as a coffee cup?

No. A standard US customary cup is exactly 236.588 mL. A coffee cup can vary in size from 150 mL to 300 mL or more, depending on the manufacturer.

How do I convert a recipe from cups to mL?

Multiply each cup measurement by 236.588236 to get milliliters. For example, 1 1/2 cups = 1.5 × 236.588236 = 354.88 mL. This calculator makes it easy.

What is the symbol for cups?

The symbol for cups is c or C. For example, 1 cup is often written as 1 c or 1 C.