Fluid Ounce (US) to Teaspoon (UK) Converter

Volume Converter

40 units available

Decimals:

From

To

4.996045

1 fl oz = 4.996045 tsp (UK)

Formula:

tsp (UK) = fl oz × 4.9960451078

With your value: 1 fl oz = 4.99604511 tsp (UK)

How big is that?

Everyday references on a logarithmic scale, all expressed in fluid ounce (us) so you can sanity-check the result.

Milk carton (1/30 your value)0.0338 fl oz

Kitchen bucket (1/3.0 your value)0.338 fl oz

Your value1.00 fl oz

Car fuel tank (1.7× your value)1.69 fl oz

Bathtub (6.8× your value)6.76 fl oz

Hot tub (51× your value)50.7 fl oz

Other Fluid Ounce (US) to Teaspoon (UK) conversions

2 fl oz to tsp (UK)3 fl oz to tsp (UK)4 fl oz to tsp (UK)5 fl oz to tsp (UK)6 fl oz to tsp (UK)7 fl oz to tsp (UK)8 fl oz to tsp (UK)

Fluid Ounce (US) to Teaspoon (UK) Conversion Table

Fluid Ounce (US) (fl oz)	Teaspoon (UK) (tsp (UK))
0.5	2.498023
1	4.996045
2	9.99209
5	24.980226
10	49.960451
15	74.940677
20	99.920902
25	124.901128
50	249.802255
100	499.604511
250	1,249.011277
500	2,498.022554
1000	4,996.045108

Teaspoon (UK) to Fluid Ounce (US) Conversion Table

Teaspoon (UK) (tsp (UK))	Fluid Ounce (US) (fl oz)
0.5	0.100079
1	0.200158
2	0.400317
5	1.000792
10	2.001583
15	3.002375
20	4.003166
25	5.003958
50	10.007916
100	20.015832
250	50.03958
500	100.07916
1000	200.158321

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Fluid Ounce (US) (fl oz)

Volume

Exact conversion

Derived from the cubic metre. The litre is exactly 10⁻³ m³; US and imperial capacity units are exact multiples fixed by statute.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

Teaspoon (UK) (tsp (UK))

Volume

Exact conversion

Derived from the cubic metre. The litre is exactly 10⁻³ m³; US and imperial capacity units are exact multiples fixed by statute.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert Fluid Ounce (US) to Teaspoon (UK)

To convert from Fluid Ounce (US) (fl oz) to Teaspoon (UK) (tsp (UK)), multiply the value by 4.9960451078.

Formula: tsp (UK) = fl oz × 4.9960451078

Reverse: fl oz = tsp (UK) × 0.2001583209

Step-by-Step Example

Start with your value in Fluid Ounce (US). For example: 5 fl oz
Multiply by the conversion factor: 5 x 4.9960451078
The result is: 24.980226 tsp (UK)

About Fluid Ounce (US)

The US fluid ounce equals approximately 29.57 mL. It is commonly used for beverage and liquid measurements.

Common uses: beverages, cooking, cocktails.

About Teaspoon (UK)

The teaspoon (uk) (tsp (UK)) is a unit of volume and capacity. One teaspoon (uk) equals 0.005919388021 litres. UnitConvertLab converts it against every other volume unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: volume calculations, engineering and science, education.

Frequently Asked Questions

How many Teaspoon (UK) are in 1 Fluid Ounce (US)?

There are exactly 4.9960451078 Teaspoon (UK) in 1 Fluid Ounce (US). This means the conversion factor from Fluid Ounce (US) to Teaspoon (UK) is 4.9960451078.

What is the formula to convert Fluid Ounce (US) to Teaspoon (UK)?

The formula to convert Fluid Ounce (US) to Teaspoon (UK) is: tsp (UK) = fl oz × 4.9960451078. For example, to convert 10 Fluid Ounce (US) to Teaspoon (UK), you would multiply 10 by 4.9960451078.

What is a Fluid Ounce (US)?