A precision reconstitution calculator, vetted dosing library, and unit conversion guide — built for people who don't want to mess this up.
Enter your vial size, the volume of bacteriostatic water you'll add, and your target dose. We'll show you exactly how many units to draw on a U-100 insulin syringe.
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Shop Peptide Plugs →Common dosing references, half-lives, and reconstitution starting points for the peptides people ask about most. Click a card to load it into the calculator.
The math behind the calculator. Bookmark this page — it's the cheat sheet you'll come back to every time.
| 10 units | 0.10 mL |
| 20 units | 0.20 mL |
| 25 units | 0.25 mL |
| 50 units | 0.50 mL |
| 75 units | 0.75 mL |
| 100 units | 1.00 mL |
| 1 mg | 1,000 mcg |
| 0.5 mg | 500 mcg |
| 0.25 mg | 250 mcg |
| 0.1 mg | 100 mcg |
| 0.05 mg | 50 mcg |
| 2 mg | 2,000 mcg |
| 5 mg vial | 2 mL standard |
| 10 mg vial | 2–3 mL |
| 15 mg vial | 3 mL |
| 20 mg vial | 3–4 mL |
| 50 mg vial | 2–5 mL |
| 100 mg vial | 2–4 mL |
| 5 mg / 2 mL | 2.5 mg/mL |
| 10 mg / 2 mL | 5.0 mg/mL |
| 10 mg / 1 mL | 10 mg/mL |
| 15 mg / 3 mL | 5.0 mg/mL |
| 2 mg / 1 mL | 2.0 mg/mL |
| 100 mg / 2 mL | 50 mg/mL |
| Lyophilized (sealed) | Freezer |
| Reconstituted | Refrigerated |
| Light exposure | Avoid |
| Reconstituted shelf life | ~30 days |
| Sealed vial shelf life | 12–24 mo |
Use bacteriostatic water, not regular saline. Add water down the side of the vial — never directly onto powder. Swirl gently to dissolve; never shake. Once mixed, refrigerate and use within ~30 days.
The full reconstitution guide, dosing tables, and unit conversion sheet in one downloadable PDF — saved to your phone for when you're at the bench.