Research Tool
Free Online Peptide Calculator
Free peptide dosage calculator for reconstitution, mixing, and GLP-1 titration. Calculate precise doses for BPC-157, TB-500, GHK-Cu, Semaglutide, Tirzepatide & more.
Educational Purposes Only
This tool is provided for educational and research informational purposes only. Peptok does not provide medical advice. Always consult with a qualified healthcare professional before beginning any research protocol. The accuracy of this calculator depends on the values you input. Double-check all measurements. Cost estimates shown in the GLP-1 planner are approximate research peptide market prices and should not be relied upon for financial decisions.
Calculations based on standard U-100 insulin syringe units (100 units = 1ml).
0.3ml = 30 Units0.5ml = 50 Units1.0ml = 100 Units
Frequently Asked Questions
How do I reconstitute peptides?▼
To reconstitute peptides, add bacteriostatic water to your vial to dissolve the lyophilized powder. The amount depends on your desired concentration. For example, adding 1ml of water to a 5mg vial creates a 5mg/ml solution. Use our peptide calculator to determine the exact volume needed for your target dose.
How do I calculate peptide dosage?▼
Enter your vial strength (mg), the amount of bacteriostatic water used (ml), and your desired dose (mcg). The calculator automatically computes the concentration and shows exactly how many syringe units to draw. This peptide dosage calculator works for any peptide including BPC-157, TB-500, GHK-Cu, CJC-1295, and GLP-1s.
How long will my peptide vial last?▼
Use the Vial Planner tab to calculate supply duration based on your vial size, dose, and injection frequency. It estimates how many days your vial will last and when you'll need to reorder. A typical 5mg vial at 500mcg daily lasts approximately 10 days.
What is the GLP-1 titration schedule?▼
The GLP-1 titration schedule varies by compound. Semaglutide typically starts at 0.25mg weekly, increasing to 0.5mg, 1mg, and up to 2mg. Tirzepatide starts at 2.5mg and titrates to 5mg, 7.5mg, 10mg, 12.5mg, and 15mg. Retatrutide research suggests starting at 0.5mg and titrating up to 8mg. Use our GLP-1 planner to track your schedule.
How much bacteriostatic water should I use?▼
The amount of bacteriostatic water depends on your target concentration. Common ratios: 1ml per 1mg = 1mcg/μl, 2ml per 1mg = 0.5mcg/μl. A 5mg vial with 2ml water = 2.5mg/ml concentration. More water = lower concentration = easier to measure small doses. Our peptide reconstitution calculator handles all these calculations instantly.