Teaspoon (US) to Tablespoon (UK) Converter

Volume Converter

40 units available

Decimals:

From

To

0.277558

1 tsp = 0.277558 tbsp (UK)

Formula:

tbsp (UK) = tsp × 0.2775580615

With your value: 1 tsp = 0.27755806 tbsp (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 Tablespoon (UK) conversions

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

Teaspoon (US) to Tablespoon (UK) Conversion Table

Teaspoon (US) (tsp)	Tablespoon (UK) (tbsp (UK))
0.5	0.138779
1	0.277558
2	0.555116
5	1.38779
10	2.775581
15	4.163371
20	5.551161
25	6.938952
50	13.877903
100	27.755806
250	69.389515
500	138.779031
1000	277.558062

Tablespoon (UK) to Teaspoon (US) Conversion Table

Tablespoon (UK) (tbsp (UK))	Teaspoon (US) (tsp)
0.5	1.801425
1	3.60285
2	7.2057
5	18.014249
10	36.028498
15	54.042747
20	72.056996
25	90.071244
50	180.142489
100	360.284978
250	900.712444
500	1,801.424888
1000	3,602.849777

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

Tablespoon (UK) (tbsp (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 Tablespoon (UK)

To convert from Teaspoon (US) (tsp) to Tablespoon (UK) (tbsp (UK)), multiply the value by 0.2775580615.

Formula: tbsp (UK) = tsp × 0.2775580615

Reverse: tsp = tbsp (UK) × 3.6028497765

Step-by-Step Example

Start with your value in Teaspoon (US). For example: 5 tsp
Multiply by the conversion factor: 5 x 0.2775580615
The result is: 1.38779 tbsp (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 Tablespoon (UK)

The tablespoon (uk) (tbsp (UK)) is a unit of volume and capacity. One tablespoon (uk) equals 0.01775816406 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 Tablespoon (UK) are in 1 Teaspoon (US)?

There are exactly 0.2775580615 Tablespoon (UK) in 1 Teaspoon (US). This means the conversion factor from Teaspoon (US) to Tablespoon (UK) is 0.2775580615.

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

The formula to convert Teaspoon (US) to Tablespoon (UK) is: tbsp (UK) = tsp × 0.2775580615. For example, to convert 10 Teaspoon (US) to Tablespoon (UK), you would multiply 10 by 0.2775580615.

What is a Teaspoon (US)?