Teaspoon (US) to Fluid Ounce (UK) Converter
Unit Converter
Instant · Precise · Universal
47 units available
6 categories total
How to Convert Teaspoon (US) to Fluid Ounce (UK)
To mL: multiply by 4.929. To UK teaspoons: multiply by 0.832674. To tablespoons (US): divide by 3.
1 US tsp = 1/3 US tbsp = 1/6 US fl oz = 1/48 US cup ≈ 4.929 mL.
For example, 1 Teaspoon (US) (tsp (US)) = 0.1734737883 Fluid Ounce (UK) (fl oz (UK)).
Teaspoon (US) to Fluid Ounce (UK) — Common Values
| Teaspoon (US) (tsp (US)) | Fluid Ounce (UK) (fl oz (UK)) |
|---|---|
| 0.1 | 0.01734737883 |
| 0.5 | 0.08673689417 |
| 1 | 0.1734737883 |
| 2 | 0.3469475767 |
| 5 | 0.8673689417 |
| 10 | 1.734737883 |
| 25 | 4.336844708 |
| 50 | 8.673689417 |
| 100 | 17.34737883 |
| 500 | 86.73689417 |
| 1000 | 173.4737883 |
About Teaspoon (US) (tsp (US))
Definition
The US teaspoon is a unit of culinary volume equal to 1/3 of a US tablespoon, or approximately 4.929 milliliters.
Mathematical Relationship
1 US tsp = 1/3 US tbsp = 1/6 US fl oz = 1/48 US cup ≈ 4.929 mL.
Conversion Formula
To mL: multiply by 4.929. To UK teaspoons: multiply by 0.832674. To tablespoons (US): divide by 3.
Practical Applications
Cooking and baking recipes, measuring medicine doses, adding spices, sugar or salt, and child medication dosing.
Interesting Facts
The US teaspoon is slightly smaller than the metric teaspoon (5 mL). The phrase 'a teaspoon of sugar' equals about 4 grams.
Common Mistakes
Using a regular eating spoon instead of a measuring teaspoon — actual teaspoons vary widely. Always use a calibrated spoon.
Educational Tips
3 tsp = 1 tbsp. 48 tsp = 1 cup. For mL conversion, remember 1 tsp ≈ 5 mL (the metric teaspoon is exactly 5 mL).
About Fluid Ounce (UK) (fl oz (UK))
Definition
The UK fluid ounce is a unit of liquid volume equal to 1/160 of an imperial gallon, or approximately 28.413 milliliters.
Mathematical Relationship
1 UK fl oz = 1/20 UK pt = 1/160 UK gal ≈ 28.4131 mL. It is about 4% smaller than a US fluid ounce.
Conversion Formula
To mL: multiply by 28.4131. To US fl oz: multiply by 0.96076. To UK pints: divide by 20.
Practical Applications
Older UK recipes, some beverage labels in Commonwealth countries, and traditional pharmaceutical dosing.
Interesting Facts
Paradoxically, the UK fluid ounce is smaller than the US fluid ounce (28.41 vs. 29.57 mL), even though UK pints and gallons are larger.
Common Mistakes
Assuming UK and US fluid ounces are the same — they differ by about 4%. This seems small but accumulates in recipes.
Educational Tips
UK fl oz ≈ 28.4 mL, US fl oz ≈ 29.6 mL. The UK has more fl oz per pint (20) vs. US (16), but each UK fl oz is smaller.