Peptide Reconstitution Calculator
Use this calculator to determine the concentration of a reconstituted peptide after adding bacteriostatic water.
Concentration Formula
Peptide amount ÷ amount of bacteriostatic water = concentration per mL
Example
A 10 mg peptide vial reconstituted with 2 mL of bacteriostatic water:
10 mg ÷ 2 mL = 5 mg/mL
The final concentration is 5 mg per mL.
Common Reconstitution Concentrations
| Peptide Amount | Bacteriostatic Water Added | Final Concentration |
|---|---|---|
| 5 mg | 1 mL | 5 mg/mL |
| 5 mg | 2 mL | 2.5 mg/mL |
| 5 mg | 2.5 mL | 2 mg/mL |
| 10 mg | 1 mL | 10 mg/mL |
| 10 mg | 2 mL | 5 mg/mL |
| 10 mg | 2.5 mL | 4 mg/mL |
| 10 mg | 3 mL | 3.33 mg/mL |
| 20 mg | 1 mL | 20 mg/mL |
| 20 mg | 2 mL | 10 mg/mL |
| 20 mg | 2.5 mL | 8 mg/mL |
| 20 mg | 4 mL | 5 mg/mL |
| 30 mg | 2 mL | 15 mg/mL |
| 30 mg | 3 mL | 10 mg/mL |
| 30 mg | 5 mL | 6 mg/mL |
| 40 mg | 2 mL | 20 mg/mL |
| 40 mg | 4 mL | 10 mg/mL |
| 50 mg | 2 mL | 25 mg/mL |
| 50 mg | 5 mL | 10 mg/mL |
| 100 mg | 5 mL | 20 mg/mL |
| 100 mg | 10 mL | 10 mg/mL |
| 500 mg | 10 mL | 50 mg/mL |
Calculate Your Concentration
Enter the amount shown on the peptide vial and the amount of bacteriostatic water added.
Peptide amount: _____ mg
Bacteriostatic water added: _____ mL
Calculation:
_____ mg ÷ _____ mL = _____ mg/mL
Converting Milligrams to Micrograms
Some peptide measurements are expressed in micrograms.
1 mg = 1,000 mcg
Examples:
- 0.1 mg = 100 mcg
- 0.25 mg = 250 mcg
- 0.5 mg = 500 mcg
- 1 mg = 1,000 mcg
- 2 mg = 2,000 mcg
- 5 mg = 5,000 mcg
- 10 mg = 10,000 mcg
To convert milligrams to micrograms, multiply by 1,000.
Example:
0.3 mg × 1,000 = 300 mcg
To convert micrograms to milligrams, divide by 1,000.
Example:
500 mcg ÷ 1,000 = 0.5 mg
Important Notes
Always confirm the amount printed on the vial before performing any calculation.
Use the total volume of liquid added to the vial when calculating the final concentration.
Adding more bacteriostatic water creates a more diluted solution. Adding less bacteriostatic water creates a more concentrated solution.
The maximum volume that can be added depends on the physical capacity of the vial.
This calculator determines concentration only. It does not recommend an amount for administration or establish a research protocol.
Research Use Disclaimer
All products offered by Bio Propel are supplied strictly for in vitro laboratory research purposes only. They are not intended for human consumption, therapeutic use, veterinary use, or diagnostic applications. Researchers are responsible for verifying all calculations and complying with applicable laws, regulations, and institutional procedures.