Convert fluid ounces to teaspoons

1 fl oz=6tsp

Use the converter below to change any fluid ounces value into teaspoons instantly — with formula, conversion table, and real-world examples.

You have

Equals

6.000002

Conversion formula

Forward

teaspoons = fluid ounces × 6

Reverse

fluid ounces = teaspoons × 0.1667

Example: 10 fl oz × 6 = 60 tsp.

About both units

From

Fluid Ounce

fl oz

The US fluid ounce equals 29.5735 millilitres — 1/128 of a US gallon. The UK fluid ounce (28.41 ml) is slightly smaller. Used for beverage can sizes in the US, cosmetic product sizes and many US cooking recipes. Do not confuse with the ounce of mass (28.35 g).

Real-world: A US soda can is 12 fl oz (355 ml). A Starbucks Tall is 12 fl oz; Grande is 16; Venti is 20.

Read full fluid ounce reference →

Teaspoon

tsp

The teaspoon equals 4.929 ml in the US, rounded to 5 ml in most recipes and on medication labels. The relationship 3 teaspoons = 1 tablespoon is universal across US, UK and metric systems. Precision medicine and small-volume cooking rely on teaspoons.

Real-world: 1 teaspoon of sugar = 4 g = 16 calories. Salt in a recipe often ½ to 1 tsp per 500 g food.

Read full teaspoon reference →

Fluid Ounce to Teaspoon conversion table

Common fluid ounces to teaspoons values for quick reference.

Fluid Ounce (fl oz)	Teaspoon (tsp)
1 fl oz	6 tsp
2 fl oz	12 tsp
5 fl oz	30 tsp
10 fl oz	60 tsp
20 fl oz	120 tsp
50 fl oz	300 tsp
100 fl oz	600 tsp
200 fl oz	1,200 tsp
500 fl oz	3,000 tsp
1,000 fl oz	6,000 tsp

Tips & common mistakes

Quick tips

1 US fl oz ≈ 29.6 ml; 1 UK fl oz ≈ 28.4 ml.
8 US fl oz ≈ 1 US cup ≈ 237 ml.
Use ml to avoid ambiguity between US and UK fluid ounces.

Avoid these

Mixing US and UK fluid ounces — 16 fl oz (US) = 473 ml vs. 16 fl oz (UK) = 455 ml.
Confusing fluid ounce (volume) with avoirdupois ounce (mass).
Assuming 1 fl oz = 1 oz by weight — only true for pure water and approximately.

Frequently asked questions

How many teaspoons in a fluid ounce?

One fluid ounce equals 6 teaspoons.

How do I convert fluid ounces to teaspoons?

Multiply the fluid ounce value by 6 to get the equivalent in teaspoons.

What is 100 fluid ounces in teaspoons?

100 fluid ounces equals 600 teaspoons.

Is a fluid ounce bigger than a teaspoon?

Yes. 1 fluid ounce equals 6 teaspoons, so one fluid ounce is larger.

How to convert fluid ounces to teaspoons without a calculator?

Multiply by 6 for a quick estimate; use a calculator for precise results.

Related volume conversions

📊 See full comparison matrix →

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