Why does the UK teaspoon have two different volume definitions?

The traditional UK teaspoon was defined as 1/6 imperial fluid ounce (≈4.736 mL), but many modern UK recipes and nutrition labels use the metric teaspoon equal to 5 mL.

Can I use this conversion for imperial cups?

No, this converter is specific to metric cups which are fixed at exactly 250 mL; imperial cups vary in size and require different conversions.

Is this tool suitable for measuring liquid medicines?

While teaspoons are sometimes used informally, it is recommended to use dedicated medical dosing devices for accuracy.

How to Convert from Teaspoon (UK) to Cup (metric)?

Easily convert volume measurements from UK teaspoons to metric cups using this online unit converter. Perfect for cooking, nutrition labeling, and recipe adjustments.

Teaspoon (UK)

Cup (metric)

Please check your input. It must be a valid numeric value.

Teaspoon (UK) to Cup (metric) Conversion Table

Teaspoon (UK)	Cup (metric)

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 (UK) to Cup (metric) Conversion Table
Teaspoon (UK)	Cup (metric)

Explore More Volume Units Converter

What Is This Tool?

This tool allows you to convert volume quantities from teaspoon (UK) units to metric cups, facilitating accurate measurement transitions between traditional UK and metric systems commonly used in cooking and nutrition.

How to Use This Tool?

Enter the amount in teaspoon (UK) you want to convert.
Select teaspoon (UK) as the from-unit and cup (metric) as the to-unit.
Initiate the conversion to see the equivalent volume in metric cups.

Key Features

Converts volume from teaspoon (UK) to cup (metric) precisely.
Supports culinary and nutritional measurement standards.
User-friendly interface for quick and easy conversions.

Examples

5 teaspoons (UK) converts to approximately 0.11839 cup (metric).
10 teaspoons (UK) converts to approximately 0.23678 cup (metric).

Common Use Cases

Measuring small ingredient amounts in traditional UK recipes.
Adjusting recipe measurements from imperial to metric units.
Using metric measuring cups for cooking and nutrition labeling.

Tips & Best Practices

Be aware of the two common UK teaspoon volumes (4.736 mL and 5 mL) when converting.
Use dedicated dosing devices for liquid medicines instead of teaspoons for better accuracy.
Ensure your measuring cups are metric for consistent results with this tool.

Limitations

UK teaspoon volumes vary between 4.736 mL and 5 mL, affecting precision.
Kitchen measuring tools can introduce rounding errors at small volumes.
Conversion applies only to fixed-size metric cups of 250 mL, not imperial cups.

Frequently Asked Questions

Why does the UK teaspoon have two different volume definitions?: The traditional UK teaspoon was defined as 1/6 imperial fluid ounce (≈4.736 mL), but many modern UK recipes and nutrition labels use the metric teaspoon equal to 5 mL.
Can I use this conversion for imperial cups?: No, this converter is specific to metric cups which are fixed at exactly 250 mL; imperial cups vary in size and require different conversions.
Is this tool suitable for measuring liquid medicines?: While teaspoons are sometimes used informally, it is recommended to use dedicated medical dosing devices for accuracy.

Key Terminology

Teaspoon (UK): A traditional UK culinary unit of volume, historically 1/6 of an imperial fluid ounce (≈4.736 mL), also often treated as 5 mL in modern uses.
Cup (metric): A non-SI volume unit used in metric countries, exactly 250 millilitres, commonly applied in cooking and nutrition measurements.

Quick Knowledge Check

What volume is one metric cup defined as?

Exactly 250 millilitres

Exactly 240 millilitres

Exactly 5 millilitres

What is a traditional UK teaspoon volume approximately equal to?

4.736 millilitres

5 millilitres

250 millilitres

Why might there be variability when converting UK teaspoons to metric cups?

Because teaspoons in the UK can be either 4.736 mL or 5 mL

Because metric cups change size

Because teaspoons are only used for medicines

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