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    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.

    Quick answer

    1 Teaspoon (Metric) = 0.0211338 US cups

    1 Teaspoon (Metric) = 0.0211338 US cups. Teaspoon (Metric) is a traditional volume unit from Western Europe.

    Convert any amount

    Teaspoon (Metric) =0.0211338 US cups

    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.

    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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