Peptide Dose + Tirzepatide / Retatrutide Weekly Planner
Offline calculator • no external files

Peptide dose calculator + weekly Tirzepatide / Retatrutide planner

Use this page to calculate reconstitution concentration, insulin syringe units, quick dose tables, and a weekly two-compound injection schedule.

Math tool only. This page does not recommend any dose, compound, source, schedule, or medical protocol. Verify all calculations, use sterile technique, and speak with a qualified clinician before using any medication or peptide.

1) Peptide reconstitution calculator

Enter how many mg are in the vial, how much BAC/diluent is added, and the target dose. Output assumes a U-100 insulin syringe where 100 units = 1 mL.

For mcg-based peptides: 250 mcg = 0.25 mg, 500 mcg = 0.5 mg, 1000 mcg = 1 mg.
Inject this many insulin units
40 units
U-100 syringe
Injection volume
0.40 mL
Based on target dose
Concentration
5.00 mg/mL
5000 mcg/mL
Amount per insulin unit
50 mcg
0.050 mg per unit
Concentration = vial mg ÷ diluent mL
Units to inject = desired dose mg ÷ concentration mg/mL × 100

2) Quick dose table

Uses the same vial and diluent settings above. Useful for checking several possible dose sizes quickly.

Dose Insulin units Volume