Why do UK teaspoons have different volumes?

Historically, the UK teaspoon was defined as about 4.736 mL, but many modern UK recipes and nutrition labels use the metric teaspoon of 5 mL, so both volumes are in use.

Can this conversion be used for medical dosing?

While it can be used informally, dedicated dosing devices are recommended for accurate medical measurements rather than volume conversions.

Is 1 US tablespoon exactly equal to 15 mL?

The US tablespoon is exactly 14.78676478125 mL and commonly approximated as 15 mL in cooking, but the exact figure is slightly less.

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

Learn how to convert volume measurements from US tablespoons to UK teaspoons, a crucial skill for accurate cooking and ingredient measurement across American and British culinary standards.

Tablespoon (US)

Teaspoon (UK)

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Tablespoon (US) to Teaspoon (UK) Conversion Table

Tablespoon (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.

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

Explore More Volume Units Converter

What Is This Tool?

This online volume unit converter helps you transform measurements from the US tablespoon to the UK teaspoon, supporting accurate ingredient quantification for cooking, baking, and other household uses.

How to Use This Tool?

Enter the volume value in US tablespoons
Select 'tablespoon (US)' as the from unit
Choose 'teaspoon (UK)' as the target unit
Click convert to get the equivalent volume in UK teaspoons
Use the results for cooking, nutrition labeling, or household dosing

Key Features

Converts between US tablespoon and UK teaspoon volume units
Supports culinary and household liquid measurement needs
Browser-based and easy to use without installation
Includes conversion examples for clarity
Helps reconcile differences in measurement standards between US and UK

Examples

1 tablespoon (US) equals approximately 2.498 teaspoon (UK)
3 tablespoons (US) convert to about 7.494 teaspoon (UK)

Common Use Cases

Converting ingredient quantities between American and British recipes
Accurately measuring small culinary volumes such as spices or sauces
Translating nutrition labels or food formulations from US to UK units
Household measurement of liquid supplements or medicines

Tips & Best Practices

Be aware that some UK recipes may use a 5 mL metric teaspoon instead of the traditional size
Use this tool for informal volume conversions rather than precise scientific measurements
For medicinal dosing, consider using dedicated measuring instruments for accuracy
Round results appropriately according to your cooking or labeling needs

Limitations

UK teaspoon volume varies between traditional (~4.736 mL) and metric (5 mL) definitions in different contexts
The tool focuses on culinary and household use and is not intended for clinical precision
Measurement precision can vary due to rounding and unit variations

Frequently Asked Questions

Why do UK teaspoons have different volumes?: Historically, the UK teaspoon was defined as about 4.736 mL, but many modern UK recipes and nutrition labels use the metric teaspoon of 5 mL, so both volumes are in use.
Can this conversion be used for medical dosing?: While it can be used informally, dedicated dosing devices are recommended for accurate medical measurements rather than volume conversions.
Is 1 US tablespoon exactly equal to 15 mL?: The US tablespoon is exactly 14.78676478125 mL and commonly approximated as 15 mL in cooking, but the exact figure is slightly less.

Key Terminology

Tablespoon (US): A unit of volume in the US customary system equal to 1/2 US fluid ounce, exactly 14.78676478125 milliliters, used mainly for small culinary measurements.
Teaspoon (UK): A traditional UK culinary unit of volume for small quantities, traditionally about 4.736 mL but often replaced by the metric 5 mL teaspoon in modern recipes and labeling.

Quick Knowledge Check

What volume in UK teaspoons equals 1 US tablespoon according to this tool?

1.5 teaspoon (UK)

2.498 teaspoon (UK)

3.0 teaspoon (UK)

Which of the following is true about the UK teaspoon?

It is always exactly 5 mL

It can be either approximately 4.736 mL or 5 mL

It equals the US tablespoon

What is a common use case for converting tablespoon (US) to teaspoon (UK)?

Measuring large industrial volumes

Translating recipe volumes between American and British standards

Measuring fabric lengths

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