A metric cup is 250 milliliters.
Metric cups to Fluid ounces Converter — metric cup to fl oz
Convert Metric cup (metric cup) to Fluid ounce (fl oz) using the exact conversion factor (1 metric cup = 8.453505675 fluid ounce). See the formula, worked examples, conversion table, unit comparison, history, and common uses.
Metric cups to Fluid ounces converter
Converter
Cooking Converter
Convert cooking volume and mass units used in recipes and nutrition workflows.
Context values
Some unit families need one extra value for a physically accurate result.
A US fluid ounce is 1/128 of a US gallon.
Result = input x 0.00025 / 2.95735296e-5.
Volume units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Metric cups to Fluid ounces
Metric cup and Fluid ounce both show up in recipes, and converting between them matters whenever a recipe from one country's cookbook needs to be followed with another country's measuring tools. Metric cup is typically associated with australia, New Zealand, United Kingdom, Canada (recipes and cooking measurement), while Fluid ounce is typically associated with united States (beverage, nutrition labeling).
Formula
fluid ounces = metric cups × 8.45350567546
This factor comes from each unit's defined relationship to the category's base unit: 1 metric cup equals 0.00025 base units, and 1 fluid ounce equals 0.0000295735295625 base units, so dividing one by the other gives the direct metric cup-to-fluid ounce factor of 8.45350567546.
Simple example
1 metric cup × 8.453505675 = 8.453505675 fl oz
1 metric cup = 8.453505675 fluid ounces.
Real-world example
2 metric cup × 8.453505675 = 16.90701135 fl oz
2 metric cups = 16.90701135 fluid ounces.
Conversion table
| Metric cup (metric cup) | Fluid ounce (fl oz) |
|---|---|
| 0.25 metric cup | 2.113376419 fl oz |
| 0.5 metric cup | 4.226752838 fl oz |
| 1 metric cup | 8.453505675 fl oz |
| 2 metric cup | 16.90701135 fl oz |
| 4 metric cup | 33.8140227 fl oz |
| 8 metric cup | 67.6280454 fl oz |
Reverse conversion: Fluid ounce to Metric cup
8.453505675 fl oz × 0.1182941182 = 0.9999999999 metric cup
8.453505675 fluid ounces = 0.9999999999 metric cups.
metric cups = fluid ounces × 0.11829411825
For a page dedicated to this direction, see Fluid ounce to Metric cup.
Metric cup vs. Fluid ounce
| Aspect | Metric cup | Fluid ounce |
|---|---|---|
| Family | Non-SI unit (culinary, metric countries) | US customary unit |
| Typical use | Recipe and cooking measurement in metric-using English-speaking countries | US beverage container sizing (soda, water bottles) |
| Where it's used | Australia, New Zealand, United Kingdom, Canada (recipes and cooking measurement) | United States (beverage, nutrition labeling) |
Understanding the Metric cup
Metric cup (metric cup) measures volume. The metric cup used in Australia, New Zealand, the UK, and Canada is defined as exactly 250 milliliters. It is classified as a Non-SI unit (culinary, metric countries).
Where it's used: Australia, New Zealand, United Kingdom, Canada (recipes and cooking measurement)
Metric cup vs. US cup. The metric cup (250 mL) is about 4% larger than the US cooking cup (240 mL) — small for most recipes, but worth checking when following a recipe from a different country.
Uses of the Metric cup today
- Recipe and cooking measurement in metric-using English-speaking countries
- Baking and portion measurement
History of the Metric cup
As Commonwealth countries metricated through the 20th century, cookbook publishers and standards bodies adopted a round 250 mL 'metric cup' so recipes could use a convenient, easily-scaled volume rather than the US's 240 mL or older imperial teacup conventions.
Historical origin. Metric cup was not the invention of a single named person; it developed through the process described above.
Understanding the Fluid ounce
Fluid ounce (fl oz) measures volume. The US fluid ounce is 1/128 of a US gallon: exactly 29.5735295625 milliliters. It is classified as a US customary unit.
Where it's used: United States (beverage, nutrition labeling)
Uses of the Fluid ounce today
- US beverage container sizing (soda, water bottles)
- US nutrition and medication dosing labels
History of the Fluid ounce
The US fluid ounce follows from the same English wine-gallon system as the rest of the US liquid volume units, defined as a consistent fraction of the gallon.
Historical origin. Fluid ounce was not the invention of a single named person; it developed through the process described above.
Metric cup — sources
- National Measurement Institute (Australia) — Kitchen measures — Documents the 250 mL metric cup standard.
Fluid ounce — sources
- NIST Handbook 44, Appendix C — General tables of units including the US fluid ounce definition.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many fluid ounces are in 1 metric cup?
1 metric cup equals 8.453505675 fluid ounces, using the exact defined conversion factor rather than an estimate.
How do I convert metric cup to fluid ounce?
Multiply the metric cup value by 8.453505675. The converter above does this instantly to whatever precision you set.
How do I convert fluid ounce back to metric cup?
Use the reverse factor: 1 fluid ounce equals 0.1182941182 metric cups. You can also use the swap control in the converter above to flip the direction instantly.
What is a metric cup?
Metric cup (metric cup) measures volume. The metric cup used in Australia, New Zealand, the UK, and Canada is defined as exactly 250 milliliters. It is classified as a Non-SI unit (culinary, metric countries).
What is a fluid ounce?
Fluid ounce (fl oz) measures volume. The US fluid ounce is 1/128 of a US gallon: exactly 29.5735295625 milliliters. It is classified as a US customary unit.
Is the metric cup to fluid ounce conversion exact?
Yes. The US fluid ounce is 1/128 of a US gallon: exactly 29.5735295625 milliliters. That fixed definition is what the converter above uses, so any rounding you see is a display choice, not a limitation of the math.
What is the difference between metric cup vs. us cup?
The metric cup (250 mL) is about 4% larger than the US cooking cup (240 mL) — small for most recipes, but worth checking when following a recipe from a different country.
Where is the metric cup still used today?
Australia, New Zealand, United Kingdom, Canada (recipes and cooking measurement)