21.33 Milliliters to Cups

21.33 mL ≈ 0.090157 cup

Calculation: cup = 21.33 mL × 0.00422675 ≈ 0.090157 cup

Milliliter to Cup Converter

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How much is 21.33 mL?

21 mL (0.72 fl oz) is about one US fluid ounce (29.6 mL), about two tablespoons.

What does 21.33 mL look like?

Illustration of a small measuring cup
21 mL (0.72 fl oz) is about one US fluid ounce (29.6 mL), about two tablespoons.

21.33 mL on the cup scale

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21.33 mL = 0.0902 cup

How to Convert Milliliter to Cup

1 milliliter = 0.00422675 cups

Cup = Milliliter × 0.00422675

Example: 21.33 mL × 0.00422675 = 0.090157 cup

Reverse Conversion

To convert cups back to milliliters:

  • Remember, 1 cup equals 236.588 milliliters.
  • To convert 0.090157 cup to mL, multiply 0.090157 x 236.588, resulting in 21.33 mL.

21.33 mL is also equal to:

  • 0.02133 liter
  • 0.045078 pint
  • 0.022539 quart
  • 0.72125 ounce

Frequently Asked Questions

How much is 21.33 milliliters in cups?

21.33 milliliters equals 0.090157 cups. This is calculated by multiplying 21.33 by the conversion factor 0.00422675.

What does 21.33 milliliters look like in cups?

21.33 milliliters (0.090157 cups) is a fluid ounce or a shot glass.

How do you calculate 21.33 milliliters to cups?

Multiply 21.33 by the conversion factor 0.00422675. The calculation is 21.33 × 0.00422675 = 0.090157 cups. This factor is defined by international measurement standards.

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21.33 milliliters = 0.0901566 cups
21.33 milliliters = 0.0901566 cups — conversion chart

For general conversions between milliliters and cups, see the milliliters to cups converter.

Also convert Milliliters to:

Conversion factors verified against NIST, BIPM, ISO 80000-3 1 US gallon = 3.785411784 L (exact, US customary). Last reviewed: March 2026
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.