Fluid Ounces to Teaspoons Converter

What is a fluid ounces to teaspoons converter?

A fluid ounces to teaspoons converter turns a volume measured in US fluid ounces (fl oz) into the equivalent number of US teaspoons (tsp). Both are volume units used in cooking and baking, so the tool is handy whenever a recipe lists one unit but your measuring spoons are marked in the other.

A US fluid ounce is about 29.5735 millilitres, while a US teaspoon is about 4.92892 millilitres. Because both describe the same physical dimension, converting between them is a single multiplication.

Formula

The conversion relies on the ratio of the two volumes in millilitres:

$\text{Teaspoons} = \text{Fluid ounces} \times \frac{29.5735}{4.92892} = \text{Fluid ounces} \times 6$

To go the other way, divide by the same factor:

$\text{Fluid ounces} = \frac{\text{Teaspoons}}{6}$

How to convert fluid ounces to teaspoons

1. Take the volume you have in US fluid ounces.
2. Multiply it by 6, because 1 US fluid ounce = 6 US teaspoons.
3. The result is the equivalent number of US teaspoons.

To reverse the conversion, divide the number of teaspoons by 6 to recover the fluid ounces.

Worked examples

Example 1 — 1 fluid ounce to teaspoons

$1 \text{ fl oz} \times 6 = 6 \text{ teaspoons}$

So a single US fluid ounce equals exactly 6 US teaspoons.

Example 2 — 12 teaspoons back to fluid ounces

$\frac{12 \text{ teaspoons}}{6} = 2 \text{ fl oz}$

Twelve US teaspoons therefore make up 2 US fluid ounces.

Example 3 — 0.5 fluid ounce to teaspoons

$0.5 \text{ fl oz} \times 6 = 3 \text{ teaspoons}$

Half a fluid ounce is 3 teaspoons, a useful figure for scaling small recipe amounts.

FAQ

How many teaspoons are in a fluid ounce?

There are exactly 6 US teaspoons in 1 US fluid ounce, since a fluid ounce (29.5735 mL) is six times the volume of a teaspoon (4.92892 mL).

Does this work for UK or metric teaspoons?

No. This converter uses US fluid ounces and US teaspoons. UK and metric teaspoons have slightly different volumes, so the factor of 6 would not apply exactly. For related conversions see the ounces to tablespoons converter and the fluid ounces to quarts converter.