Convert US Cup to Metric Cup
Convert us cups to metric cups instantly. 1 us cup = 0.946352946 metric cup — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Metric Cup to US Cup converter for the reverse conversion.
Units explained
US Cup
A US customary cup is one sixteenth of a US gallon (236.588 mL).
Standardized for American cooking; distinct from the 240 mL US legal cup and the 250 mL metric cup.
The standard US cooking-volume unit in recipes.
US customary cooking measure.
Metric Cup
A metric cup is exactly 250 milliliters.
Adopted with metrication in Australia, New Zealand and other countries.
Standard cooking cup in metric-recipe countries.
Metrication, 20th c.
US Cup to Metric Cup conversion formula
The relationship between us cups and metric cups:
To convert us cups to metric cups, multiply the value in us cups by 0.946352946. To reverse, multiply metric cups by 1.0566882094.
How to use this converter
Type a value into the calculator. The result in metric cups updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Metric Cup to US Cup converter for the reverse direction.
Step-by-step: convert us cups to metric cups
- Write down the value in us cups (cup).
- Multiply that value by the factor 0.946352946.
- The product is the equivalent value in metric cups (cup).
- To reverse, multiply the metric cup value by 1.0566882094.
Worked examples
Example 1 — Convert 1 cup to cup:
1 × 0.946352946 = 0.946352946 cup
Example 2 — Convert 100 cup to cup:
100 × 0.946352946 = 94.6352946 cup
Real-world example — Plastic-film thickness alternates
A 150-us cup plastic film converts cleanly to metric cups — useful for packaging buyers reconciling supplier datasheets across metric and US measurement systems.
150 cup × 0.946352946 = 141.9529419 cup
Real-world example — Hair-width scale measurements
A 70-us cup measurement (about the diameter of a human hair) is the kind of value materials engineers regularly express in adjacent micro-scale units like metric cups for direct comparison across supplier datasheets.
70 cup × 0.946352946 = 66.24470622 cup
Real-world example — Paper and film thicknesses
At the thickness of office paper (roughly 3 us cups), converting between sub-millimeter units is routine for packaging and printing buyers comparing quotes from metric and US suppliers.
3 cup × 0.946352946 = 2.839058838 cup
US Cup to Metric Cup conversion table
Standard reference values for converting us cups to metric cups:
| US Cup [cup] | Metric Cup [cup] |
|---|---|
| 0.01 | 0.0094635295 |
| 0.1 | 0.0946352946 |
| 1 | 0.946352946 |
| 2 | 1.892705892 |
| 3 | 2.839058838 |
| 4 | 3.785411784 |
| 5 | 4.73176473 |
| 10 | 9.46352946 |
| 20 | 18.92705892 |
| 30 | 28.39058838 |
| 40 | 37.85411784 |
| 50 | 47.3176473 |
| 100 | 94.6352946 |
| 500 | 473.176473 |
| 1000 | 946.352946 |
Frequently asked questions
How many metric cups is 1 us cup?
How do I convert us cups to metric cups?
How do I convert metric cups back to us cups?
How many metric cups is 100 us cups?
Popular volume unit conversions
Convert US Cup to other volume units
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Metric / SI (8 units)
US Customary (Liquid) (7 units)
Imperial (UK) (4 units)
Cubic (length-derived) (3 units)
Cooking / Culinary (3 units)
Sources & references
Conversion factor (1 cup = 0.946352946 cup) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.