InjectBuddy performs standard volume and ratio calculations for TRT, peptide reconstitution, BMI, and free testosterone estimates. Enter your numbers, get your result instantly.
Calculate injection volume for testosterone protocols, including every-N-days, weekly, and mL-to-mg modes.
Work out vial concentration, mL per injection, and U-100 syringe units after reconstitution.
Estimate body mass index using either kg and cm or lb and ft/in inputs.
Calculate the Free Androgen Index (FAI) from total testosterone and SHBG lab values.
Calculate draw volume from compounded semaglutide vials (2.5, 5, or 10 mg/mL) for any prescribed dose.
Calculate draw volume from compounded tirzepatide vials for doses from 2.5 mg to 15 mg.
Derive vial concentration from your reconstitution volume and calculate exact draw in mL and U-100 units.
Calculate draw volumes for both BPC-157 and TB-500 from separately reconstituted vials and get the combined syringe total.
Built by Pouroa Frew — developer, not a medical professional. InjectBuddy performs standard volume and ratio calculations based on your inputs. These calculators do not constitute medical advice — always verify dosing with your prescribing doctor or pharmacist. About Disclaimer Privacy