Reconstitution Calculator
Laboratory math for reconstituting lyophilized peptides: enter the amount, vial size and diluent to see the volume to measure on a U-100 syringe.
mg
The quantity of peptide you need per measurement. For mcg, divide by 1,000 (250 mcg = 0.25 mg).
mg
Use the tested amount from the COA if you have it — vials are rarely exactly what the label says.
mL
Changes the concentration, not the amount measured.
Draw to
10.0units
0.100 mL
0102030
Shown on a 0.3 mL (30-unit) U-100 syringe
- Concentration
- 2.50 mg/mL
- Measurements per vial
- 20
How it works
1. Concentration = 5 mg ÷ 2 mL
2. Volume = 0.25 mg ÷ concentration
3. Units = volume (mL) × 100 (U-100 syringe)
1. Concentration = 5 mg ÷ 2 mL
2. Volume = 0.25 mg ÷ concentration
3. Units = volume (mL) × 100 (U-100 syringe)
Common reconstitution amounts
Units to draw on a U-100 syringe.
| Vial + water | 0.25 mg | 0.5 mg | 1 mg | 2 mg | 2.5 mg |
|---|---|---|---|---|---|
| 5 mg + 1 mL | 5.0 | 10.0 | 20.0 | 40.0 | 50.0 |
| 5 mg + 2 mL | 10.0 | 20.0 | 40.0 | 80.0 | 100.0 |
| 10 mg + 2 mL | 5.0 | 10.0 | 20.0 | 40.0 | 50.0 |
| 10 mg + 3 mL | 7.5 | 15.0 | 30.0 | 60.0 | 75.0 |
For laboratory research and educational purposes only. This tool performs unit conversions; it is not dosing guidance, medical advice or an endorsement of human or animal use.