Fluid Ounces to Microliters Converter
Enter the volume in fluid ounces below to convert it to microliters.
Convert Fluid Ounces (UK) to Microliters
Enter a value in fluid ounces (uk) (fl oz (UK)) to convert to microliters (µL).
Fluid Ounce to Microliter Conversion Table
Table showing various fluid ounce measurements converted to microliters. Click any preset value or arrow to load it into the converter.
| Fluid Ounces (UK) (fl oz (UK)) | Microliters (µL) |
|---|---|
| 1 fl oz (UK) | 28,413.0625 µL |
| 2 fl oz (UK) | 56,826.125 µL |
| 2.5 fl oz (UK) | 71,032.65625 µL |
| 5 fl oz (UK) | 142,065.3125 µL |
| 10 fl oz (UK) | 284,130.625 µL |
| 15 fl oz (UK) | 426,195.9375 µL |
| 20 fl oz (UK) | 568,261.25 µL |
| 25 fl oz (UK) | 710,326.5625 µL |
| 30 fl oz (UK) | 852,391.875 µL |
| 50 fl oz (UK) | 1,420,653.125 µL |
How to Convert Fluid Ounces to Microliters
To convert fluid ounces to microliters, multiply the volume by the following conversion ratio: 28,413.0625 microliters/fluid ounce.
Since one fluid ounce is equal to 28,413.0625 microliters, you can use this simple formula to convert:
The volume in microliters is equal to the volume in fluid ounces multiplied by 28,413.0625.
For example, here's how to convert 5 fluid ounces to microliters using the formula above.
How Many Microliters Are in a Fluid Ounce?
There are 28,413.0625 microliters in a fluid ounce, which is why we use this value in the formula above.
Our fluid ounce to microliter calculator automatically converts your volume measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Fluid Ounces and microliters 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 0.0284131 liters (L), the base unit for volume. 1/160 of a UK Imperial gallon (28.4131 mL). [1]
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.
What Is a Microliter?
A microliter is a unit of volume equal to 1/1,000,000 of a liter (0.000001 L). One-millionth of a liter (1 cubic millimeter). [2]
The microliter is classified as a metric and SI-compatible unit of volume. Microliters can be abbreviated as µL; for example, 1 microliter can be written as 1 µL.
In the metric system, "micro" is the standard SI prefix for millionths, or 10⁻⁶. This makes the microliter (µL) a convenient decimal multiple of the liter (L).
In practice, microliters (µL) are widely used across fine-tolerance laboratory, analytical, and micro-scale volume measurements within SI metric workflows, engineering documentation, and technical data sheets.
When converting volume between fluid ounces (fl oz (UK)) and microliters (µL), keep full floating-point precision (1 fl oz (UK) = 28,413.0625 µL; 1 µL = 0.000035195 fl oz (UK)) during intermediate calculations and round only the final microliter figure to match your instrument tolerance.
More Imperial Fluid Ounce & Microliter Conversions
Need to calculate in the opposite direction? Use our microliters to fluid ounces (uk) calculator to switch your starting unit immediately. You can also explore related tools such as converting microliters to fluid ounces (uk), converting fluid ounces (uk) to fluid ounces (us), or converting fluid ounces (uk) to milliliters.
Convert from Imperial Fluid Ounces
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Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Volume)·Volume & Liquid Metrology Standard — Fluid Ounces (UK) (fl oz (UK)) to Microliters (µL)
- [2]NIST HB 44 SpecificationNIST HB 44 (Liquid & Dry Capacity Tables)·Unit Specifications: Fluid Ounce (UK Imperial) (fl oz (UK)) & Microliter (µL)
- [3]NIST SP 811 ReferenceNIST SP 811 (NIST SP 811 App. B.9)·Conversion Factors & Mathematical Basis (fl oz (UK) to µL)