15 Ounces to Milliliters

15 fl oz ≈ 443.6 mL

Calculation: mL = 15 fl oz × 29.5735 ≈ 443.6 mL

Ounce to Milliliter Converter

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How much is 15 fl oz?

444 mL (15 fl oz) is about a standard water bottle (500 mL / 16.9 fl oz).

What does 15 fl oz look like?

Illustration of a water bottle
444 mL (15 fl oz) is about a standard water bottle (500 mL / 16.9 fl oz).

15 fl oz on the milliliter scale

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15 fl oz = 443.6 mL

Did you know? Water bottle (standard) is 500 mL.

The standard single-serve water bottle is 500 mL (16.9 fl oz), half a liter.

How to Convert Ounce to Milliliter

1 ounce = 29.5735 milliliters

Milliliter = Ounce × 29.5735

Example: 15 fl oz × 29.5735 = 443.6 mL

Reverse Conversion

To convert milliliters back to ounces:

  • Remember, 1 milliliter equals 0.033814 ounces.
  • To convert 443.6 mL to fl oz, multiply 443.6 x 0.033814, resulting in 15 fl oz.

15 fl oz is also equal to:

Frequently Asked Questions

How much is 15 ounces in milliliters?

15 ounces equals 443.6 milliliters. This is calculated by multiplying 15 by the conversion factor 29.5735.

What does 15 ounces look like in milliliters?

15 ounces (443.6 milliliters) is between a cup and a pint — a standard drinking glass.

How do you calculate 15 ounces to milliliters?

Multiply 15 by the conversion factor 29.5735. The calculation is 15 × 29.5735 = 443.6 milliliters. This factor is defined by international measurement standards.

Share This Calculation

15 ounces = 443.603 milliliters
15 ounces = 443.603 milliliters — conversion chart

Nearby Conversions

1 ounce29.57 milliliters 3 ounces88.72 milliliters 5 ounces147.9 milliliters 7 ounces207 milliliters 9 ounces266.2 milliliters 11 ounces325.3 milliliters 13 ounces384.5 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 31 ounces916.8 milliliters 33 ounces975.9 milliliters 35 ounces1035 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.