Free peptide supply planning · 2026
See how many doses are in a vial and how long it will last at your dosing interval. Plan reorders before you run out — for peptides, GLP-1s, and research compounds.
Planning Math
Estimate how many measured uses a vial contains and how long the supply lasts at a chosen interval. It is useful for planning inventory, comparing vial sizes, and spotting when a schedule is likely to run short.
Complete Peptide Reconstitution Guide 2026Duration estimate is mathematically valid.
Start with the peptide reconstitution calculator when you need vial amount, BAC water volume, target amount, and U-100 syringe markings in one place. Use the companion syringe loader for known concentrations, the vial duration estimator for supply planning, and the half-life calculator for simple decay math. Every result stays focused on educational reference math and keeps the safety boundary clear.
A no-BS companion guide for peptide vial math, BAC water handling, syringe units, concentration checks, and common calculation mistakes.
Read the guideUse the syringe loader when you already know vial concentration and need a quick mL draw estimate for one or more compounds.
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Add it to your phoneCalculator FAQ
Divide the total vial amount by your amount per use. A 10 mg vial dosed at 1 mg per use gives roughly 10 doses, before accounting for residual volume and draw loss.
Multiply the number of doses by your dosing interval. Ten doses at one dose every 3 days lasts about 30 days. The calculator estimates this from your inputs.
The total vial amount, the amount per use, and how often you dose (the interval in days). The calculator returns estimated doses per vial and total duration.
Duration depends on amount, not diluent volume, so the result holds whether you mixed with 1 mL or 3 mL — as long as the per-use amount is the same.
Yes. Enter the vial amount and your per-dose amount in matching units (mg, mcg, or IU) and the calculator estimates doses and duration the same way.
No. It is educational supply-planning math and does not recommend doses, schedules, or provide medical guidance.