Ounces to Micrograms Converter
Enter the weight in ounces below to convert it to micrograms.
Convert Ounces to Micrograms
Enter a value in ounces (oz) to convert to micrograms (µg).
Ounce to Microgram Conversion Table
Table showing various ounce measurements converted to micrograms. Click any preset value or arrow to load it into the converter.
| Ounces (oz) | Micrograms (µg) |
|---|---|
| 0.0000001 oz | 2.8349523 µg |
| 0.0000002 oz | 5.6699046 µg |
| 0.0000003 oz | 8.5048569 µg |
| 0.0000004 oz | 11.3398093 µg |
| 0.0000005 oz | 14.1747616 µg |
| 0.0000006 oz | 17.0097139 µg |
| 0.0000007 oz | 19.8446662 µg |
| 0.0000008 oz | 22.6796185 µg |
| 0.0000009 oz | 25.5145708 µg |
| 0.00000001 oz | 0.2834952 µg |
How to Convert Ounces to Micrograms
To convert ounces to micrograms, multiply the weight by the following conversion ratio: 28,349,523.125 micrograms/ounce.
Since one ounce is equal to 28,349,523.125 micrograms, you can use this simple formula to convert:
The weight in micrograms is equal to the weight in ounces multiplied by 28,349,523.125.
For example, here's how to convert 5 ounces to micrograms using the formula above.
How Many Micrograms Are in an Ounce?
There are 28,349,523.125 micrograms in an ounce, which is why we use this value in the formula above.
Our ounce to microgram calculator automatically converts your weight measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Ounces and micrograms are both units used to measure weight. Keep reading to learn more about each unit.
What Is an Ounce?
An ounce is a unit of weight equal to 0.0283495 kilograms (kg), the base unit for weight. Equal to 1/16 of a pound (approx. 28.3495 grams). [1]
The ounce is classified as a US customary and imperial unit of weight. Ounces can be abbreviated as oz; for example, 1 ounce can be written as 1 oz.
When working with ounces (oz) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, ounces (oz) are widely used across standard weight applications within US customary and imperial workflows, engineering documentation, and technical data sheets.
What Is a Microgram?
A microgram is a unit of weight equal to 1/1,000,000,000 of a kilogram (1e-9 kg). One-millionth of a gram (10⁻⁹ kg). [2]
The microgram is classified as a metric and SI-compatible unit of weight. Micrograms can be abbreviated as µg; for example, 1 microgram can be written as 1 µg.
In the metric system, "micro" is the standard SI prefix for millionths, or 10⁻⁶. This makes the microgram (µg) a convenient decimal multiple of the gram (g).
In practice, micrograms (µg) are widely used across fine-tolerance laboratory, analytical, and micro-scale weight measurements within SI metric workflows, engineering documentation, and technical data sheets.
When converting weight between ounces (oz) and micrograms (µg), keep full floating-point precision (1 oz = 28,349,523.125 µg; 1 µg = 0.000000035 oz) during intermediate calculations and round only the final microgram figure to match your instrument tolerance.
More Ounce & Microgram Conversions
Need to calculate in the opposite direction? Use our micrograms to ounces calculator to switch your starting unit immediately. You can also explore related tools such as converting micrograms to ounces, converting milligrams to micrograms, or converting ounces to grams.
Convert from Ounces
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Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Mass)·Mass & Weight Metrology Standard — Ounces (oz) to Micrograms (µg)
- [2]NIST HB 44 SpecificationNIST HB 44 (NIST Handbook 44 (Current Ed.))·Unit Specifications: Ounce (oz) & Microgram (µg)
- [3]BIPM ReferenceBIPM (SI Base Unit: Kilogram (kg))·Conversion Factors & Mathematical Basis (oz to µg)