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TRT and Peptide Dosage Calculators —
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InjectBuddy performs standard volume and ratio calculations for TRT, peptide reconstitution, BMI, and free testosterone estimates. Enter your numbers, get your result instantly.
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 Calculator
Total testosterone · SHBG · Free Androgen IndexCalculate the Free Androgen Index (FAI) from total testosterone and SHBG lab values.