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HGH Dosage Calculator

The dedicated calculator for HGH (Human Growth Hormone) dosing. Instantly convert IU to syringe units for precise, reliable dosing.

Calculate Your HGH Dose

Which syringe are you using?
0.3 mL syringe
Your HGH Vial

What's the total amount in it?

How much bacteriostatic water (BAC) are you adding?

This determines your HGH concentration.

1 mL and 2 mL are the most common choices. We've marked 2 mL as a standard starting point.

Your HGH Dose

How much do you want per injection?

Based on the standard conversion rate:
1 mg ≈
IU.

Your Injection Dose

To get your 1 IU dose with your selected 0.3 mL syringe:

Pull to 20 units.

0.3 mL syringe scale

Zoomed-in for Accuracy:

Full size of 30units syringe scale
Swipe to explore

Answers to Your Questions

The globally accepted standard, based on the World Health Organization (WHO) international standard for high-purity recombinant Human Growth Hormone (rhGH), is 1 mg ≈ 3 IU. Our calculator uses this as the default for all calculations. This "gold standard" is documented in authoritative sources like this official FDA drug label, which shows that 5mg of somatropin is approximately 15 IU.
While 1 mg ≈ 3 IU is the universal standard, the most crucial principle is to always trust the manufacturer's data first. Some highly precise pharmaceutical products might provide a slightly different potency on their package insert (e.g., "Potency: 2.8 IU per mg"). Our calculator allows you to edit the conversion rate to match your specific product's documentation, ensuring the highest possible accuracy. If your product information is missing or unclear, using the 3 IU/mg standard is the safest baseline.
Common starting doses for general research purposes often range from 1 to 2 IU per day. However, the optimal dose is highly dependent on the specific research goals, subject weight, and other factors. The information provided here is for informational purposes only and is not a recommendation. Always consult authoritative research literature for your specific application.
Once reconstituted with bacteriostatic water, HGH solution must always be kept refrigerated (approx. +4 °C). It is highly sensitive to heat and agitation. Do not freeze the reconstituted solution, as this can damage the hormone's delicate structure. Most reconstituted HGH solutions remain stable for approximately 3 to 4 weeks when stored correctly.
No, you will use the same standard U-100 insulin syringes discussed on our main page. This HGH calculator does the essential work of converting the biological potency (IU) into the precise physical volume (units) needed for your U-100 syringe.
You are currently on our dedicated HGH Dosage Calculator. For other substances, we have specialized tools:
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