Fluid Ounces to Fluid Ounces Converter
Enter the volume in fluid ounces below to convert it to fluid ounces.
Convert Fluid Ounces (US) to Fluid Ounces (UK)
Enter a value in fluid ounces (us) (fl oz) to convert to fluid ounces (uk) (fl oz (UK)).
Fluid Ounce to Fluid Ounce Conversion Table
Table showing various fluid ounce measurements converted to fluid ounces. Click any preset value or arrow to load it into the converter.
| Fluid Ounces (US) (fl oz) | Fluid Ounces (UK) (fl oz (UK)) |
|---|---|
| 1 fl oz | 1.0408427 fl oz (UK) |
| 2 fl oz | 2.0816855 fl oz (UK) |
| 5 fl oz | 5.2042137 fl oz (UK) |
| 8 fl oz | 8.3267418 fl oz (UK) |
| 10 fl oz | 10.4084273 fl oz (UK) |
| 15 fl oz | 15.612641 fl oz (UK) |
| 16 fl oz | 16.6534837 fl oz (UK) |
| 20 fl oz | 20.8168546 fl oz (UK) |
| 25 fl oz | 26.0210683 fl oz (UK) |
| 30 fl oz | 31.2252819 fl oz (UK) |
How to Convert Fluid Ounces to Fluid Ounces
To convert fluid ounces to fluid ounces, multiply the volume by the following conversion ratio: 1.0408427 fluid ounces/fluid ounce.
Since one fluid ounce is equal to 1.0408427 fluid ounces, you can use this simple formula to convert:
The volume in fluid ounces is equal to the volume in fluid ounces multiplied by 1.0408427.
For example, here's how to convert 16 fluid ounces to fluid ounces using the formula above.
How Many Fluid Ounces Are in a Fluid Ounce?
There are 1.0408427 fluid ounces in a fluid ounce, which is why we use this value in the formula above.
Our fluid ounce to fluid ounce calculator automatically converts your volume measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Fluid Ounces and fluid ounces are both units used to measure volume. Keep reading to learn more about each unit.
What Is a Fluid Ounce?
A fluid ounce is a unit of volume equal to 0.0295735 liters (L), the base unit for volume. 1/128 of a US gallon (29.5735 mL). [1]
The fluid ounce is classified as a US customary unit of volume. Fluid Ounces can be abbreviated as fl oz; for example, 1 fluid ounce can be written as 1 fl oz.
When working with fluid ounces (fl oz) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, fluid ounces (fl oz) are widely used across standard volume applications within US customary workflows, engineering documentation, and technical data sheets.
What Is a Fluid Ounce?
A fluid ounce is a unit of volume equal to 0.0284131 liters (L), the base unit for volume. 1/160 of a UK Imperial gallon (28.4131 mL). [2]
The fluid ounce is classified as a US customary and imperial unit of volume. Fluid Ounces can be abbreviated as fl oz (UK); for example, 1 fluid ounce can be written as 1 fl oz (UK).
When working with fluid ounces (fl oz (UK)) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, fluid ounces (fl oz (UK)) are widely used across standard volume applications within US customary and imperial workflows, engineering documentation, and technical data sheets.
When converting volume between fluid ounces (fl oz) and fluid ounces (fl oz (UK)), keep full floating-point precision (1 fl oz = 1.0408427 fl oz (UK); 1 fl oz (UK) = 0.9607599 fl oz) during intermediate calculations and round only the final fluid ounce figure to match your instrument tolerance.
More Fluid Ounce & Imperial Fluid Ounce Conversions
Need to calculate in the opposite direction? Use our fluid ounces (uk) to fluid ounces (us) converter (fl oz (UK) to fl oz) to switch your starting unit immediately. You can also explore related tools such as converting milliliters to fluid ounces (uk), converting fluid ounces (us) to milliliters, or converting fluid ounces (us) to cups (us).
Convert from Fluid Ounces
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Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Volume)·Volume & Liquid Metrology Standard — Fluid Ounces (US) (fl oz) to Fluid Ounces (UK) (fl oz (UK))
- [2]NIST HB 44 SpecificationNIST HB 44 (Liquid & Dry Capacity Tables)·Unit Specifications: Fluid Ounce (US) (fl oz) & Fluid Ounce (UK Imperial) (fl oz (UK))
- [3]NIST SP 811 ReferenceNIST SP 811 (NIST SP 811 App. B.9)·Conversion Factors & Mathematical Basis (fl oz to fl oz (UK))