1 UK fluid ounce
28.41 mlVolume · definition
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Volume & capacity
Just how much is 1 UK fluid ounce?
A spoonful
1 UK fl oz
1 UK fluid ounce
The quantity is exact as entered.
28.41 mlVolume
Too small to see at this scale. The ring marks its true-scale position, not its volume. The shape has not been enlarged.
30 ml espresso
An espresso is a concentrated coffee made by forcing hot water through finely-ground coffee beans.
30 mlVolume
Too small to see at this scale. The ring marks its true-scale position, not its volume. The shape has not been enlarged.
These are equal-volume cubes. Edge lengths grow with the cube root of capacity; the cubes do not depict container exteriors.
A little perspective
The capacity of a 30 ml espresso is about 1.06 times 1 UK fluid ounce.
Measurements, assumptions & sources +
1 UK fluid ounce
Volume: 28.41 ml; definition.
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
30 ml espresso
Volume: 30 ml; example.
Defined 30 ml capacity. Actual containers, servings and fills vary. Outer shape is not used to calculate capacity.
Defined examples — our methodology
The marked volume is calibrated. Unmeasured illustration details are representative.
Measurement details
Why these numbers?
Compare 1 UK fluid ounce with the volume of a 30 ml espresso. The notes below explain how each value was chosen.
30 ml espresso
30 mlVolume · example
Defined 30 ml capacity. Actual containers, servings and fills vary. Outer shape is not used to calculate capacity.
- Comparing
- Volume ↔ Volume
- Relative size
- The capacity of a 30 ml espresso is about 1.06 times 1 UK fluid ounce. The volume of a 30 ml espresso is approximately 5.59% greater than 1 UK fluid ounce.
How to read the visual
The diagram uses the recorded measurements. Details outside the marked spans do not set the scale.
- The volume of a 30 ml espresso: This is an illustrative comparison value, not a claim that every example is the same.
Volume measures three-dimensional space; a container’s capacity is not its outside dimensions.
0.028413 Llitres
2.8413 × 10⁻⁵ m³cubic metres
0.0075059 US galUS gallons
0.00625 UK galUK gallons
Change your perspective
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A little smaller. A little larger.