18 Ounces to Teaspoons

18 fl oz = 108 tsp

Calculation: tsp = 18 fl oz × 6 = 108 tsp

Ounce to Teaspoon Converter

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How much is 18 fl oz?

532 mL (18 fl oz) is about a standard wine bottle (750 mL / 25.4 fl oz).

What does 18 fl oz look like?

Illustration of a wine bottle
532 mL (18 fl oz) is about a standard wine bottle (750 mL / 25.4 fl oz).

18 fl oz on the Teaspoon scale

fl oz01020304050tsp050100.0150.0200.0250.0300.0

18 fl oz = 108.0 tsp

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 Teaspoon

1 ounce = 6 Teaspoons

Teaspoon = Ounce × 6

Example: 18 fl oz × 6 = 108 tsp

Reverse Conversion

To convert Teaspoons back to ounces:

  • Remember, 1 Teaspoon equals 16 ounces.
  • To convert 108 tsp to fl oz, multiply 108 x 16, resulting in 18 fl oz.

18 fl oz is also equal to:

Frequently Asked Questions

How much is 18 ounces in Teaspoons?

18 ounces equals 108 Teaspoons. This is calculated by multiplying 18 by the conversion factor 6.

What does 18 ounces look like in Teaspoons?

18 ounces (108 Teaspoons) is a pint to a quart — a large glass or a small bottle.

How do you calculate 18 ounces to Teaspoons?

Multiply 18 by the conversion factor 6. The calculation is 18 × 6 = 108 Teaspoons. This factor is defined by international measurement standards.

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18 ounces = 108 Teaspoons
18 ounces = 108 Teaspoons — conversion chart

Nearby Conversions

2 ounces12 Teaspoons 6 ounces36 Teaspoons 10 ounces60 Teaspoons 14 ounces84 Teaspoons 22 ounces132 Teaspoons 26 ounces156 Teaspoons 30 ounces180 Teaspoons 34 ounces204 Teaspoons 38 ounces228 Teaspoons 42 ounces252 Teaspoons 46 ounces276 Teaspoons 50 ounces300 Teaspoons 54 ounces324 Teaspoons 58 ounces348 Teaspoons

For general conversions between ounces and Teaspoons, see the ounces to Teaspoons 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.