What is the volume of a US teaspoon in milliliters?

A US teaspoon is exactly 4.92892159375 milliliters.

Why are there different values for the UK teaspoon?

The UK teaspoon has a traditional definition based on the imperial fluid ounce and a modern metric definition of 5 mL, leading to variation.

Can I use this conversion for medicine dosing?

Yes, but precise dosing devices are recommended for accuracy in liquid medicines.

How to Convert from Teaspoon (US) to Teaspoon (UK)?

Convert volume measurements from US teaspoon to UK teaspoon accurately with this easy-to-use online unit converter. Ideal for cooking, baking, nutrition labeling, and dosing medicines.

Teaspoon (US)

Teaspoon (UK)

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Teaspoon (US) to Teaspoon (UK) Conversion Table

Teaspoon (US)	Teaspoon (UK)

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Start Value

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.

End Value

Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.

Interval

Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.

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

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What Is This Tool?

This tool converts volume values expressed in US teaspoons to the equivalent amount in UK teaspoons. It is designed to help users align measurements across different culinary and healthcare standards.

How to Use This Tool?

Enter the volume value in teaspoons (US) that you want to convert.
Select the target unit as teaspoon (UK).
Click the convert button to obtain the equivalent quantity in UK teaspoons.
Use the converted result to ensure proper measurements in recipes or dosing.

Key Features

Converts volumes between US and UK teaspoon units.
Simple and fast conversion process for cooking, baking, and healthcare.
Browser-based tool accessible without installation.
Includes clear examples to assist understanding.
Supports common use cases like recipe adjustments and medicine dosing.

Examples

1 teaspoon (US) equals approximately 0.83 teaspoon (UK).
5 teaspoons (US) convert to about 4.16 teaspoons (UK).

Common Use Cases

Adjusting ingredient amounts between US and UK cooking recipes.
Aligning nutrition labels that use different teaspoon standards.
Ensuring correct dosing of over-the-counter liquid medicines.
Adapting volumes in food manufacturing and culinary arts.
Household healthcare measurements involving small liquid volumes.

Tips & Best Practices

Be aware of the UK teaspoon variations between traditional and metric standards.
Use dedicated measuring devices for accurate liquid medicine dosing.
Consider rounding results appropriately based on recipe or healthcare needs.
Double-check conversions when precise volume is crucial.

Limitations

UK teaspoon volume can differ between traditional (~4.736 mL) and metric (5 mL) definitions, causing minor inconsistencies.
Informal dosing conversions may lack precision without proper measuring tools.

Frequently Asked Questions

What is the volume of a US teaspoon in milliliters?: A US teaspoon is exactly 4.92892159375 milliliters.
Why are there different values for the UK teaspoon?: The UK teaspoon has a traditional definition based on the imperial fluid ounce and a modern metric definition of 5 mL, leading to variation.
Can I use this conversion for medicine dosing?: Yes, but precise dosing devices are recommended for accuracy in liquid medicines.

Key Terminology

Teaspoon (US): A volume unit in the US customary system equal to 1/6 of a US fluid ounce or exactly 4.92892159375 mL.
Teaspoon (UK): A traditional culinary volume unit in the UK, historically 1/6 of an imperial fluid ounce (~4.736 mL), also commonly referred as 5 mL in metric usage.
Conversion Rate: The factor used to convert measurements from one unit to another, here 1 teaspoon (US) = 0.8326741846 teaspoon (UK).

Quick Knowledge Check

What is the formula to convert 1 US teaspoon to UK teaspoons?

1 teaspoon (US) = 1.2 teaspoon (UK)

1 teaspoon (US) = 0.8326741846 teaspoon (UK)

1 teaspoon (US) = 1 teaspoon (UK)

Which of these best describes the UK teaspoon?

Always exactly 4.9289 mL

Varies between a traditional and a metric definition

Same as an imperial fluid ounce

What are common uses for converting US teaspoon to UK teaspoon?

Temperature measurement

Cooking, baking, and medicine dosing

Weight calculation

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