Gonadorelin peptide calculator
A 1 mg Gonadorelin vial mixed with 2 ml of bacteriostatic water holds 0.5 mg/ml. A 100 mcg dose is 0.20 ml — 20 units on a U-100 insulin syringe — and the vial holds 10 doses of that size.
Gonadorelin dosage chart: units to draw
Units on a U-100 insulin syringe (100 units = 1 ml) for Gonadorelin doses from 50 mcg to 200 mcg, by how much bacteriostatic water is in a 1 mg vial. The highlighted row is the 100 mcg dose used above.
| Dose | 1 ml water 1 mg/ml | 2 ml water 0.5 mg/ml | 3 ml water 0.333 mg/ml | Doses per vial |
|---|---|---|---|---|
| 50 mcg | 5 u 0.050 ml | 10 u 0.10 ml | 15 u 0.15 ml | 20 |
| 100 mcg | 10 u 0.10 ml | 20 u 0.20 ml | 30 u 0.30 ml | 10 |
| 150 mcg | 15 u 0.15 ml | 30 u 0.30 ml | 45 u 0.45 ml | 6 |
| 200 mcg | 20 u 0.20 ml | 40 u 0.40 ml | 60 u 0.60 ml | 5 |
A 20-unit draw fits comfortably on a 0.3 ml insulin syringe (30-unit capacity), whose 1-unit (often half-unit) markings are easier to read than the 2-unit ticks on a 1 ml syringe.
Unit math only, not a dosing recommendation. The dose range is what published protocols and trials describe; see the Gonadorelin guide for sources.
How to reconstitute Gonadorelin
- Wipe both vial stoppers with a fresh alcohol swab and let them dry.
- Draw 2 ml of bacteriostatic water into a syringe.
- Insert the needle at an angle into the Gonadorelin vial and let the water run slowly down the inner wall — do not inject directly onto the powder.
- Do not shake. Gently swirl the vial until the peptide fully dissolves.
- Storage for Gonadorelin: Lyophilized refrigerated. Reconstituted: refrigerated, use within 14 days.
- For a 100 mcg dose, draw to the 20-unit mark (0.20 ml) on a U-100 insulin syringe.
About Gonadorelin
Gonadorelin is a synthetic form of endogenous GnRH. It is used in TRT protocols as an HCG alternative to maintain testicular function and preserve fertility.
Half-life: 2–10 minutes (very short)
Typical dose range: 100–200 mcg per injection, often 2x daily or via pulsatile pump
Class: Synthetic gonadotropin-releasing hormone
Regulatory status: FDA approved historically for diagnosis of hypothalamic-pituitary dysfunction (Factrel, Lutrepulse — discontinued commercially). Compounded for off-label TRT-support use.
Read the full Gonadorelin guide → — mechanism, side effects, storage, regulatory status and citations. Or browse the whole peptide glossary.
Other tools for Gonadorelin
Calculators for related peptides: Kisspeptin-10, CJC-1295, HCG, Hexarelin, HGH Fragment 176-191.
Need a different unit or a different question? The peptide dose converter moves a dose between mcg, mg and IU, and the half-life visualizer shows how concentration accumulates across a dosing cadence. Loading Gonadorelin into a reusable 3 ml pen instead of drawing it with a syringe? The peptide pen calculator turns the same vial into mcg per click and clicks to dial. All of them are listed on the free peptide tools page.
Gonadorelin calculator FAQ
Is this a Gonadorelin peptide calculator or a reconstitution calculator?
Both. This Gonadorelin calculator converts vial strength, bacteriostatic-water volume, and target dose into milliliters and insulin-syringe units. It does not recommend a medical dose.
How much bacteriostatic water for a 1 mg Gonadorelin vial?
This page is pre-filled with 2 ml of bacteriostatic water for a 1 mg Gonadorelin vial because that is a common research ratio. You can adjust the water amount in the full calculator.
How many units is a 100 mcg Gonadorelin dose?
20 units on a U-100 insulin syringe, when a 1 mg vial is mixed with 2 ml of bacteriostatic water (0.5 mg/ml). That is 0.20 ml. With a different amount of water the unit count changes — the dose chart on this page lists 1 ml, 2 ml, 3 ml mixes.
How many doses are in a 1 mg Gonadorelin vial?
10 doses of 100 mcg. The number of doses depends only on vial strength and dose size — adding more or less water changes the volume of each draw, not how many draws the vial holds.
Does this Gonadorelin dosage calculator give medical advice?
No. It only performs unit math. Dosing, titration, and whether Gonadorelin is appropriate are clinical decisions that should be made with a licensed healthcare professional.
Skip the math — let the app handle it
Peptide Protocol remembers your Gonadorelin vial, shows the units for every dose, tracks what is left, and rotates injection sites for you.
Get the iPhone app →Educational use only. Peptide Protocol is an informational tool. Nothing on this page constitutes medical advice. Many peptides are prescription-only or restricted in your jurisdiction. Always consult a licensed healthcare professional before injecting any compound.