Convert Imperial Fluid Ounce to Metric Cup
Convert imperial fluid ounces to metric cups instantly. 1 imperial fluid ounce = 0.11365225 metric cup — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Metric Cup to Imperial Fluid Ounce converter for the reverse conversion.
Units explained
Imperial Fluid Ounce
An imperial fluid ounce is 1/160 of an imperial gallon (28.4131 mL).
Defined so that ten fluid ounces make an imperial half-pint.
Used in UK and Commonwealth recipes and labels.
UK, 1824.
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.
Imperial Fluid Ounce to Metric Cup conversion formula
The relationship between imperial fluid ounces and metric cups:
To convert imperial fluid ounces to metric cups, multiply the value in imperial fluid ounces by 0.11365225. To reverse, multiply metric cups by 8.798769932.
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 Imperial Fluid Ounce converter for the reverse direction.
Step-by-step: convert imperial fluid ounces to metric cups
- Write down the value in imperial fluid ounces (fl oz).
- Multiply that value by the factor 0.11365225.
- The product is the equivalent value in metric cups (cup).
- To reverse, multiply the metric cup value by 8.798769932.
Worked examples
Example 1 — Convert 1 fl oz to cup:
1 × 0.11365225 = 0.11365225 cup
Example 2 — Convert 100 fl oz to cup:
100 × 0.11365225 = 11.365225 cup
Real-world example — Paper and film thicknesses
At the thickness of office paper (roughly 3 imperial fluid ounces), converting between sub-millimeter units is routine for packaging and printing buyers comparing quotes from metric and US suppliers.
3 fl oz × 0.11365225 = 0.34095675 cup
Real-world example — Plastic-film thickness alternates
A 150-imperial fluid ounce plastic film converts cleanly to metric cups — useful for packaging buyers reconciling supplier datasheets across metric and US measurement systems.
150 fl oz × 0.11365225 = 17.0478375 cup
Real-world example — Hair-width scale measurements
A 70-imperial fluid ounce 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 fl oz × 0.11365225 = 7.9556575 cup
Imperial Fluid Ounce to Metric Cup conversion table
Standard reference values for converting imperial fluid ounces to metric cups:
| Imperial Fluid Ounce [fl oz] | Metric Cup [cup] |
|---|---|
| 0.01 | 0.0011365225 |
| 0.1 | 0.011365225 |
| 1 | 0.11365225 |
| 2 | 0.2273045 |
| 3 | 0.34095675 |
| 4 | 0.454609 |
| 5 | 0.56826125 |
| 10 | 1.1365225 |
| 20 | 2.273045 |
| 30 | 3.4095675 |
| 40 | 4.54609 |
| 50 | 5.6826125 |
| 100 | 11.365225 |
| 500 | 56.826125 |
| 1000 | 113.65225 |
Frequently asked questions
How many metric cups is 1 imperial fluid ounce?
How do I convert imperial fluid ounces to metric cups?
How do I convert metric cups back to imperial fluid ounces?
How many metric cups is 100 imperial fluid ounces?
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Metric / SI (8 units)
US Customary (Liquid) (8 units)
Imperial (UK) (3 units)
Cubic (length-derived) (3 units)
Sources & references
Conversion factor (1 fl oz = 0.11365225 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.