9 Ounces to Milliliters

9 fl oz ≈ 266.16 mL

Calculation: mL = 9 fl oz × 29.5735 ≈ 266.16 mL

Ounce to Milliliter Converter

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How much is 9 fl oz?

266 mL (9.0 fl oz) is about a standard beer can (330-355 mL / 12 fl oz).

What does 9 fl oz look like?

Illustration of a beer can
266 mL (9.0 fl oz) is about a standard beer can (330-355 mL / 12 fl oz).

9 fl oz on the milliliter scale

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9 fl oz = 266.2 mL

Did you know? One US cup is 240 mL.

1 US cup = 240 mL = 8 fl oz. The metric cup used in Australia and NZ is 250 mL.

How to Convert Ounce to Milliliter

1 ounce = 29.5735 milliliters

Milliliter = Ounce × 29.5735

Example: 9 fl oz × 29.5735 = 266.16 mL

Reverse Conversion

To convert milliliters back to ounces:

  • Remember, 1 milliliter equals 0.033814 ounces.
  • To convert 266.16 mL to fl oz, multiply 266.16 x 0.033814, resulting in 9 fl oz.

9 fl oz is also equal to:

Frequently Asked Questions

How much is 9 ounces in milliliters?

9 ounces equals 266.16 milliliters. This is calculated by multiplying 9 by the conversion factor 29.5735.

What does 9 ounces look like in milliliters?

9 ounces (266.16 milliliters) is between a cup and a pint — a standard drinking glass.

How do you calculate 9 ounces to milliliters?

Multiply 9 by the conversion factor 29.5735. The calculation is 9 × 29.5735 = 266.16 milliliters. This factor is defined by international measurement standards.

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9 ounces = 266.162 milliliters
9 ounces = 266.162 milliliters — conversion chart

Nearby Conversions

1 ounce29.57 milliliters 3 ounces88.72 milliliters 5 ounces147.9 milliliters 7 ounces207 milliliters 11 ounces325.3 milliliters 13 ounces384.5 milliliters 15 ounces443.6 milliliters 17 ounces502.8 milliliters 19 ounces561.9 milliliters 21 ounces621 milliliters 23 ounces680.2 milliliters 25 ounces739.3 milliliters 27 ounces798.5 milliliters 29 ounces857.6 milliliters

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

Also convert Ounces to:

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