Convert Teaspoon (Metric) to US cups
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) = 0.0211338 US cups
US cups = Teaspoon (Metric) × 0.021133764
Convert any amount
Teaspoon (Metric) to US cups table
| Teaspoon (Metric) | US cups |
|---|---|
| 0.25 Teaspoon (Metric) | 0.00528344 US cups |
| 0.5 Teaspoon (Metric) | 0.0105669 US cups |
| 1 Teaspoon (Metric) | 0.0211338 US cups |
| 2 Teaspoon (Metric) | 0.0422675 US cups |
| 3 Teaspoon (Metric) | 0.0634013 US cups |
| 4 Teaspoon (Metric) | 0.0845351 US cups |
| 5 Teaspoon (Metric) | 0.105669 US cups |
| 10 Teaspoon (Metric) | 0.211338 US cups |
| 20 Teaspoon (Metric) | 0.422675 US cups |
| 25 Teaspoon (Metric) | 0.528344 US cups |
| 50 Teaspoon (Metric) | 1.05669 US cups |
| 100 Teaspoon (Metric) | 2.11338 US cups |
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 If your figure came from a land record, invoice or historical document rather than a calculator, check these before assuming a single standard.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 US cupsHistorically reconstructed
- Tablespoon (Metric) to US cupsConventional value
- Cup (UK/Imperial) to US cupsConventional value
- Cup (Metric) to US cupsConventional value
- Fluid Ounce (UK) to US cupsConventional value
- Gallon (UK) to US cupsConventional value
- Gallon (US) to US cupsConventional value
- Pint (UK) to US cupsConventional value
Related conversions
Frequently asked
How many US cups are in a Teaspoon (Metric)?
1 Teaspoon (Metric) = 0.0211338 US cups. Multiply the number of Teaspoon (Metric) by 0.021133764 to get US cups.
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 US cups. UnitConvertLab. Retrieved from https://unitconvertlab.com/regional/tsp-metric-to-us-cup
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