Convert Teaspoon (Metric) to millilitres
Western Europe · Cooking Measures · active · modern
Conventional value The unit is customary but its modern value is settled and widely cited; the arithmetic itself is exact.
1 Teaspoon (Metric) = 5 millilitres
millilitres = Teaspoon (Metric) × 5
Convert any amount
Teaspoon (Metric) to millilitres table
| Teaspoon (Metric) | millilitres |
|---|---|
| 0.25 Teaspoon (Metric) | 1.25 millilitres |
| 0.5 Teaspoon (Metric) | 2.5 millilitres |
| 1 Teaspoon (Metric) | 5 millilitres |
| 2 Teaspoon (Metric) | 10 millilitres |
| 3 Teaspoon (Metric) | 15 millilitres |
| 4 Teaspoon (Metric) | 20 millilitres |
| 5 Teaspoon (Metric) | 25 millilitres |
| 10 Teaspoon (Metric) | 50 millilitres |
| 20 Teaspoon (Metric) | 100 millilitres |
| 25 Teaspoon (Metric) | 125 millilitres |
| 50 Teaspoon (Metric) | 250 millilitres |
| 100 Teaspoon (Metric) | 500 millilitres |
About the Teaspoon (Metric)
Metric teaspoon = 5ml exactly.
- Symbol
- tsp m
- Value in SI
- 1 Teaspoon (Metric) = 0.005 litre
- Typical use
- cooking
- Source
- UnitConvertLab measurement atlas
Every atlas conversion routes through the SI litre. See our methodology and data provenance pages for how these values are sourced and verified.
Related units and variant risk
Other cooking measures units in the Western Europe family, least settled first. If your figure came from a land record, invoice or historical document rather than a calculator, check these before assuming a single standard.
- Gill (UK) to millilitresHistorically reconstructed
- Tablespoon (Metric) to millilitresConventional value
- Cup (UK/Imperial) to millilitresConventional value
- Cup (Metric) to millilitresConventional value
- Fluid Ounce (UK) to millilitresConventional value
- Gallon (UK) to millilitresConventional value
- Gallon (US) to millilitresConventional value
- Pint (UK) to millilitresConventional value
Related conversions
Frequently asked
How many millilitres are in a Teaspoon (Metric)?
1 Teaspoon (Metric) = 5 millilitres. Multiply the number of Teaspoon (Metric) by 5 to get millilitres.
What is Teaspoon (Metric) used for?
Metric teaspoon = 5ml exactly. It is classified as active and dates from the modern period.
Is the Teaspoon (Metric) value exact?
Yes for practical purposes. UnitConvertLab converts every atlas unit through the SI litre, so the arithmetic itself introduces no rounding beyond the digits shown.
How reliable is this Teaspoon (Metric) conversion?
Conventional value — The unit is customary but its modern value is settled and widely cited; the arithmetic itself is exact. Source: UnitConvertLab measurement atlas.
Cite this page
UnitConvertLab. (2026). Convert Teaspoon (Metric) to millilitres. UnitConvertLab. Retrieved from https://unitconvertlab.com/regional/tsp-metric-to-milliliter
Report an incorrect value or source
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