Peptide Calculator

Pick a peptide, enter your vial info, and the results update automatically. This is a reconstitution math tool for research use only.

For research and educational purposes only. Not intended for diagnosing, treating, curing, or preventing any disease, nor for human consumption guidance. Researchers should follow all applicable regulations, product labels, and qualified professional direction. Do not exceed vial capacity or stated directions.

Protocol inputs

Choose a peptide or blend, then tune your reconstitution and schedule.

Peptide / blend

Research contexts often report weekly or split dosing; titration is frequently described.

Vial content (mg)

Total peptide in the vial.

BAC water (ml)

How much bacteriostatic water you add.

Syringe / pen

100 units = 1 ml. Max 100 units per injection.

Target dose per injection

Default value shown for calculation only. Enter the dose directed by your licensed provider.

Injections per week

Updated automatically when you select injection days.

For reference only: adding ~1.5 ml of BAC water to a 25 mg vial would make a 4 mg dose roughly 24 units per injection (capped at 3 ml, a common vial limit). Adjust to your actual vial and syringe.

Injection days

Inject on: Sunday

Time of day

When you plan to inject. Shown on your schedule to help separate multiple peptides.

Schedule type

Start date

End date

Titration schedule

Ramp dose up or down over weeks (e.g. Retatrutide 2→3→4 mg).

Protocol name (optional)

Notes (optional)

Results

Reconstitution math updates as you type.

Concentration

12.50 mg/ml

mg per unit

0.1250 mg

Units for dose

32.0 units / 0.32 ml

Weekly total

8.00 mg

Vial lasts

3.1 weeks

Max units/injection

100 units

Quick reference

1 unit = 0.0100 ml (100 units/ml)
Max per injection: 100 units
Prime 1-2 units before each injection
Use a new needle each time
Refrigerate after mixing
Always use sterile technique

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Peptide Calculator

Pick a peptide, enter your vial info, and the results update automatically. This is a reconstitution math tool for research use only.