Certified tool
Cooking Measurement Converter
Convert US, Imperial, and metric cooking volumes. This is not a universal volume-to-weight tool.
Exact defined conversion
236.5882 mL
1 US cup → Milliliter
Cross-system conversion: US customary → SI / metric. Factors are not silently aliased.
Systems: us-customary → si.
Assumptions
- This converter is volume-to-volume only.
- US cup = 8 US fluid ounces. US tablespoon = 1/16 US cup. US teaspoon = 1/48 US cup.
- Metric cup (250 mL), metric tablespoon (15 mL), and metric teaspoon (5 mL) are conventional kitchen values, not SI base units.
- Imperial cup here is 10 Imperial fluid ounces.
Examples
- 1 US cup = 236.5882 mL (8 US fl oz).
- 1 metric cup = 250 mL (conventional).
- 3 US teaspoons = 1 US tablespoon.
How to use
- Enter a non-negative cooking volume.
- Choose US, Imperial, metric, or conventional kitchen units.
- Do not treat the result as grams. Mass needs an ingredient density, which this page does not invent.
Limitations
- Flour, sugar, butter, and water do not share a cups-to-grams factor.
- US nutrition-label fluid ounces (30 mL) are not used.
- This is not a recipe scaler.
FAQ
- How many grams is a cup of flour?
- This tool will not say. That answer depends on the ingredient and how it is packed. Use a scale or a density-aware tool.
- Which cup is a “cup” in a US recipe?
- Use the US cup (8 US fl oz). A metric cup is 250 mL and an Imperial cup is larger than a US cup.