Teaspoon (US) to Cup (UK) Converter

Volume Converter

40 units available

Decimals:

From

To

0.017347

1 tsp = 0.017347 cup (UK)

Formula:

cup (UK) = tsp × 0.0173473788

With your value: 1 tsp = 0.01734738 cup (UK)

How big is that?

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

Soda can (1/15 your value)0.0670 tsp

Milk carton (1/4.9 your value)0.203 tsp

Your value1.00 tsp

Kitchen bucket (2.0× your value)2.03 tsp

Car fuel tank (10× your value)10.1 tsp

Bathtub (41× your value)40.6 tsp

Other Teaspoon (US) to Cup (UK) conversions

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

Teaspoon (US) to Cup (UK) Conversion Table

Teaspoon (US) (tsp)	Cup (UK) (cup (UK))
0.5	0.008674
1	0.017347
2	0.034695
5	0.086737
10	0.173474
15	0.260211
20	0.346948
25	0.433684
50	0.867369
100	1.734738
250	4.336845
500	8.673689
1000	17.347379

Cup (UK) to Teaspoon (US) Conversion Table

Cup (UK) (cup (UK))	Teaspoon (US) (tsp)
0.5	28.822798
1	57.645596
2	115.291193
5	288.227982
10	576.455964
15	864.683946
20	1,152.911928
25	1,441.139911
50	2,882.279821
100	5,764.559642
250	14,411.399106
500	28,822.798212
1000	57,645.596424

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.

Teaspoon (US) (tsp)

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

Cup (UK) (cup (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 Teaspoon (US) to Cup (UK)

To convert from Teaspoon (US) (tsp) to Cup (UK) (cup (UK)), multiply the value by 0.0173473788.

Formula: cup (UK) = tsp × 0.0173473788

Reverse: tsp = cup (UK) × 57.6455964242

Step-by-Step Example

Start with your value in Teaspoon (US). For example: 5 tsp
Multiply by the conversion factor: 5 x 0.0173473788
The result is: 0.086737 cup (UK)

About Teaspoon (US)

The US teaspoon equals approximately 4.93 mL. It is one of the most common cooking measurements.

Common uses: cooking, medicine dosage, baking.

About Cup (UK)

The cup (uk) (cup (UK)) is a unit of volume and capacity. One cup (uk) equals 0.284130625 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 Cup (UK) are in 1 Teaspoon (US)?

There are exactly 0.0173473788 Cup (UK) in 1 Teaspoon (US). This means the conversion factor from Teaspoon (US) to Cup (UK) is 0.0173473788.

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

The formula to convert Teaspoon (US) to Cup (UK) is: cup (UK) = tsp × 0.0173473788. For example, to convert 10 Teaspoon (US) to Cup (UK), you would multiply 10 by 0.0173473788.

What is a Teaspoon (US)?