Free peptide calculators
Precision calculators and references for laboratory workflows. No account, no tracking, no dose recommendations — just the math, done accurately, in your browser.
General calculators
Compound-specific calculators
5 mg and 10 mg BPC-157 vials → concentration, syringe units, and draws per vial.
TB-500 / TB-4 vials → concentration, syringe units, and draws per vial.
Retatrutide vials → mg-per-draw converted to exact U-100 syringe units.
Tirzepatide vials → concentration, exact syringe units, and draws per vial.
Semaglutide vials → concentration, syringe units, and draws per vial.
Tesamorelin vials → concentration, syringe units, and draws per vial.
Ipamorelin and CJC-1295 blend vials → concentration, syringe units, draws per vial.
MT-2 vials → concentration, syringe units, and draws per vial.
Reference converters
Vial mass + diluent volume → mg/mL, mcg/mL, and mcg per syringe unit.
Compare diluent volumes before you mix — see how each one changes the syringe reading.
mL ↔ U-100 units, plus how many mcg each unit carries at your concentration.