1. What is Ng/mL to IU Conversion?

The ng/mL to IU conversion translates mass concentration (nanograms per milliliter) to biological activity (international units). This conversion is substance-specific as different compounds have different biological activities per unit mass.

2. How Does the Calculator Work?

The calculator uses the conversion formula:

Where:

• \( ng/mL \) — Concentration in nanograms per milliliter
• \( factor \) — Substance-specific conversion factor (IU per ng)

Explanation: The conversion factor accounts for the biological activity of a specific substance, allowing comparison of different preparations.

3. Importance of Unit Conversion

Details: Accurate unit conversion is essential when comparing different medication preparations, interpreting lab results, or following clinical guidelines that specify dosing in different units.

4. Using the Calculator

Tips: Enter the concentration in ng/mL and the substance-specific conversion factor. Ensure both values are positive numbers for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: Where can I find the conversion factor for my substance?
A: Conversion factors are typically provided by the manufacturer in product documentation or can be found in pharmacological references.

Q2: Why do different substances have different conversion factors?
A: The biological activity per unit mass varies between substances due to differences in molecular structure and potency.

Q3: Can I use this for any substance?
A: Yes, as long as you have the correct conversion factor for that specific substance.

Q4: Are IU and ng/mL interchangeable?
A: No, they measure different things (activity vs mass) and can only be converted when the specific conversion factor is known.

Q5: How precise are these conversions?
A: Precision depends on the accuracy of the conversion factor, which is determined through biological standardization.