Peptide Dose Calculator is a free set of peptide dose calculators for reconstitution, syringe units, supply planning, and lab math. Enter what’s on your vial and get the exact line to draw to.
Most usedReconstitution / BAC water calculator5 mg peptide + 2 mL BAC water. A 250 mcg dose is 10 units on a U-100 syringe.Open calculator →Pull the plunger to the 10-unit line (0.10 mL)U-100 · 1 mL
Core Dosing calculators
Mixing, drawing, and converting.
Reconstitution / BAC waterThis peptide reconstitution calculator shows how many units to draw after mixing a peptide vial with bacteriostatic (BAC) water. Enter the amount on the vial label, the water you added, and your dose.Reverse reconstitutionThis reverse reconstitution calculator works backward from a target syringe mark to tell you how much BAC water to add, so every dose lands on an easy-to-read line.Syringe units converterThis insulin syringe units calculator converts any dose and concentration into the units and milliliters to draw, with a syringe diagram showing the fill line.mg / mcg / IU converterThis mg to mcg converter switches between grams, milligrams, micrograms, and nanograms, and converts to international units (IU) when you know the substance’s factor.ConcentrationThis peptide concentration calculator shows how strong your solution is after reconstitution, in mg/mL, mcg/mL, and mcg per insulin syringe unit.
Planning calculators
Supply, schedules, cost, and storage.
Doses per vialThis doses per vial calculator divides the amount in your vial by your dose to show how many full doses you get and what is left over.Vial durationThis vial duration calculator shows how long one peptide vial lasts on your dosing schedule and the date of your last full dose.Cycle supply plannerThis peptide cycle supply planner totals the vials, BAC water, syringes, and swabs you need for a full cycle, rounded up so you don’t run short.Cost per dose / cycleThis peptide cost calculator breaks a vial price down into cost per dose, per week, and per cycle, including how many whole vials you need to buy.Expiration trackerUse this tracker to follow reconstituted peptide expiration. Enter the date you mixed the vial to see its use-by date, days remaining, and storage notes.
Compounds calculators
Vial presets and reference data for specific peptides.
GLP-1 titration scheduleThis GLP-1 titration schedule calculator turns the standard dose escalation into a week-by-week table in mg, mL, and insulin syringe units for your vial.SemaglutideThis Semaglutide calculator shows how many units to draw after reconstituting a Semaglutide vial. It includes common vial sizes, half-life, and storage notes.FDA-approvedTirzepatideThis Tirzepatide calculator shows how many units to draw after reconstituting a Tirzepatide vial. It includes common vial sizes, half-life, and storage notes.FDA-approvedRetatrutideThis Retatrutide calculator shows how many units to draw after reconstituting a Retatrutide vial. It includes common vial sizes, half-life, and storage notes.InvestigationalBPC-157This BPC-157 calculator shows how many units to draw after reconstituting a BPC-157 vial. It includes common vial sizes, half-life, and storage notes.Research onlyTB-500This TB-500 calculator shows how many units to draw after reconstituting a TB-500 vial. It includes common vial sizes, half-life, and storage notes.Research onlyGHK-CuThis GHK-Cu calculator shows how many units to draw after reconstituting a GHK-Cu vial. It includes common vial sizes, half-life, and storage notes.Research onlyCJC-1295This CJC-1295 calculator shows how many units to draw after reconstituting a CJC-1295 vial. It includes common vial sizes, half-life, and storage notes.Research onlyIpamorelinThis Ipamorelin calculator shows how many units to draw after reconstituting a Ipamorelin vial. It includes common vial sizes, half-life, and storage notes.Research onlyTesamorelinThis Tesamorelin calculator shows how many units to draw after reconstituting a Tesamorelin vial. It includes common vial sizes, half-life, and storage notes.FDA-approvedSermorelinThis Sermorelin calculator shows how many units to draw after reconstituting a Sermorelin vial. It includes common vial sizes, half-life, and storage notes.Discontinued in USPT-141 (bremelanotide)This PT-141 calculator shows how many units to draw after reconstituting a PT-141 vial. It includes common vial sizes, half-life, and storage notes.FDA-approvedAOD-9604This AOD-9604 calculator shows how many units to draw after reconstituting a AOD-9604 vial. It includes common vial sizes, half-life, and storage notes.Research onlyMOTS-cThis MOTS-c calculator shows how many units to draw after reconstituting a MOTS-c vial. It includes common vial sizes, half-life, and storage notes.Research onlyMelanotan IIThis Melanotan II calculator shows how many units to draw after reconstituting a Melanotan II vial. It includes common vial sizes, half-life, and storage notes.Research onlySelankThis Selank calculator shows how many units to draw after reconstituting a Selank vial. It includes common vial sizes, half-life, and storage notes.Not US-approvedSemaxThis Semax calculator shows how many units to draw after reconstituting a Semax vial. It includes common vial sizes, half-life, and storage notes.Not US-approved
Advanced calculators
Blends, weight-based doses, nasal sprays, and decay curves.
Peptide blendThis peptide blend calculator shows how much of each peptide you get per injection when two or three peptides share one vial.Weight-based doseThis weight-based dose calculator multiplies body weight by a mcg/kg figure, then converts the total dose into insulin syringe units.Nasal sprayThis nasal spray peptide calculator shows how much peptide each spray delivers and how many sprays a bottle holds.Half-life / decayThis peptide half-life calculator charts estimated levels over time so you can see how doses accumulate and when steady state is reached.
Research calculators
Lab math for molarity and sequence properties.
MolarityThis peptide molarity calculator converts peptide mass and molecular weight into molar concentration, or tells you how much solvent to add for a target.Peptide propertiesThis peptide properties calculator reads an amino acid sequence and returns its molecular weight, net charge, isoelectric point, and composition.
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About these peptide calculators
Every calculator runs in your browser and updates as you type. Results use the standard insulin syringe scale, where 1 unit equals 0.01 mL, and work with U-100, U-50, and U-30 syringes.
Each page explains the formula, walks through a worked example with real numbers, and lists the published sources behind any reference data, such as half-life and storage notes. Nothing you enter is stored or sent anywhere.
