For Research & Education Only
The specialized online tool for calculating doses of any IU-based substance, including HCG, Insulin, EPO, and more.
Calculating for HGH? Try our dedicated HGH Calculator for a simplified experience.
Calculate Your IU Dose
Your Peptide Vial
IU
What's the total amount of peptide in it?
Your Desired Dose
mcg
How much peptide do you want per injection?
Conversion Rate
To convert between units, please provide the rate below.
Select a common preset (optional):
HGH (Human Growth Hormone) (1 mg ≈ 3 IU)HGH (1 mg ≈ 3 IU)
1 mg =
IU
How much bacteriostatic water (BAC) are you adding?
This determines the solution's concentration.
1 mL and 2 mL are the most common choices. We've marked 2 mL as a standard starting point.
Which syringe are you using?
Your Injection Dose
To get your 100 mcg dose with your selected 0.3 mL syringe:
Pull to 6 units.
Zoomed-in for Accuracy:
Swipe to explore
Answers to Your Questions
What is IU (International Unit) and why is it used?
An IU, or International Unit, is a measure of a substance's biological effect (potency), not its mass. For certain substances like HGH or HCG, potency can vary. The IU standard, often established by expert committees at the World Health Organization (WHO), ensures a consistent measure of effect worldwide. Our IU peptide calculator is specifically designed to handle these units.
Where do the preset conversion rates come from?
The conversion rates in our presets are based on the international standards for biological substances established by the World Health Organization (WHO). These standards are maintained and distributed by institutions such as the National Institute for Biological Standards and Control (NIBSC, UK), which serves as the WHO International Laboratory for Biological Standards. While our presets reflect these international references, we strongly recommend verifying against the official documentation of your specific product.
Why does the "Conversion Rate" section disappear when I use IU for everything?
This happens for a good reason. When both your vial total and your desired dose are in IU, a direct mass conversion (to mg) is not needed for the calculation. Our IU calculator can then perform a direct, highly accurate calculation within the IU unit system itself. The conversion rate tool only appears when you need to bridge the gap between IU and mg/mcg.
Can I trust the accuracy of this IU peptide calculator?
Yes. you can be confident in our calculator's math. It uses precise mathematical formulas for all conversions and calculations. The final accuracy of your dose, however, is critically dependent on using the correct IU-to-mg conversion rate for your specific product. Always use the information from your supplier if it differs from our presets.
Do I need a specific type of syringe for IU-based products?
No, you will still use the same standard U-100 insulin syringes. The "units" on these syringes are a measure of volume (0.01 mL per unit). Our peptide calculator with IU support does the complex job of converting the biological potency (IU) into the correct physical volume (units) for your syringe.
Can I use this for HGH, standard mg/mcg, or blending peptides?
You are currently on our specialized IU Dosage Calculator. For the best experience tailored to your specific task, we recommend:
For HGH (Human Growth Hormone), our dedicated HGH Calculator offers the simplest, most streamlined experience. For a basic mg/mcg dose, our primary Online Peptide Calculator is the fastest tool. For combining multiple peptides, please use our powerful Peptide Blending Calculator.
Is my data safe and private?
Absolutely. Your privacy is our top priority. All calculations are performed directly within your web browser. For your convenience, we may use your browser's local storage to save your inputs, so your data is waiting for you if you revisit.
Crucially, this data is stored only on your own device. We do not see, record, transmit, or have any access to your calculations. Your session is completely private and anonymous.
For a detailed explanation, please review our full Privacy Policy.