TRT and peptide dosing tools
Measure twice.
Inject once.
InjectBuddy provides precise injection calculators for TRT, peptide reconstitution, BMI, and free testosterone estimates. No sign-up required.
Testosterone Dosage Calculator
Vial strength, weekly dose, injection frequencyCalculate injection volume for testosterone protocols, including every-N-days, weekly, and mL-to-mg modes.
Peptide Reconstitution Calculator
Bacteriostatic water, vial concentration, doseWork out vial concentration, mL per injection, and U-100 syringe units after reconstitution.
BMI Calculator
Metric and imperial body mass indexEstimate body mass index using either kg and cm or lb and ft/in inputs.
Free Testosterone Index
Total testosterone and SHBG estimateCalculate a rough free androgen index from lab values for informational use.