Millilitre (ml) to Teaspoon (tsp)

To convert millilitres to teaspoons, divide by 5. In the UK, 1 teaspoon equals 5 ml, making this a simple calculation. This conversion is particularly common when dealing with liquid medicines — packaging often states a dose in millilitres, and many people reach for a teaspoon to measure it. Always use a calibrated measuring spoon for medicines rather than a regular teaspoon from your cutlery.

Frequently asked questions

10 ml ÷ 5 ml = 2 teaspoons. A 10 ml dose is common for liquid medicines and syrups — it is equivalent to two level teaspoons, or more precisely measured with a 10 ml oral syringe.

5 ml is exactly 1 teaspoon. This is one of the most important conversions to know, particularly for medicine dosages. Note that a regular teaspoon from your kitchen drawer is not calibrated and may hold anywhere from 3 to 7 ml.

No — ordinary cutlery teaspoons are not reliable for measuring medicines. Their volume varies by shape and size. For medicinal use, always use a calibrated oral syringe, medicine spoon, or dosing cup. These are available from pharmacies and provide an accurate 5 ml measure.

15 ml ÷ 5 ml = 3 teaspoons, which is also 1 tablespoon. This is a frequently needed conversion — many recipes and medicine instructions use 15 ml as a standard serving size.