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Sources and Accuracy
Volume conversions use cubic metre as the reference unit. US liquid units, metric litres, and cubic units are converted with fixed factors stored in the unit table.
Displayed results are rounded for readability. The calculator keeps enough precision for everyday use and switches to scientific notation for very large or very small values. Last reviewed: 2026-05-21.
About These Units
cup (US) [cup US]
Definition
The US cup is a cooking volume unit equal to 236.5882365 milliliters.
History
Cup measures developed from household cooking measures and were standardized for recipes.
Current use
US cups are used in recipes, nutrition labels, baking, meal preparation, and kitchen measuring tools.
tablespoon (metric) [tbsp metric]
Definition
The tablespoon (metric) (tbsp metric) is a volume unit used to express measurements in this converter.
History
This unit is included because it appears in practical measurement systems, technical references, product specifications, or everyday conversion needs.
Current use
Use tablespoon (metric) when comparing volume values, checking specifications, converting between systems, or preparing quick estimates.
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How to Convert
Enter the value in the “From value” field.
Confirm the source unit is cup (US) [cup US].
Confirm the target unit is tablespoon (metric) [tbsp metric].
Use this formula: 1 cup (US) [cup US] = 15.772549 tablespoon (metric) [tbsp metric] Enter your value in the calculator and the result updates instantly.