Make the relationship visible
Peptide Concentration Calculator
Clear inputs. Visible formulas. A calculation you can follow from beginning to end.
Concentration
Enter all three quantities to see your result.
A U-100 marking is a volume-scale equivalent, not an International Unit (IU) of a peptide. Results are theoretical and exclude handling losses.
Your reference chart
| Target mass | Volume (mL) | U-100 equivalent | Range check |
|---|
Rows are mathematical multiples of your input, not a dosing schedule. Values beyond the vial mass or selected capacity are flagged.
The math behind the result
Concentration (mg/mL) = total mass (mg) ÷ final volume (mL)
Equivalent volume (mL) = target mass (mg) ÷ concentration (mg/mL)
U-100 scale equivalent = volume (mL) × 100
All values are converted to the same mass unit before division. One milligram equals 1,000 micrograms. The displayed number of complete quantities is rounded down; other outputs show up to six decimal places. Calculated precision does not establish what equipment can measure.
Why is there no recommended target amount?
A suitable dose depends on a specific approved product, indication and patient assessment. A concentration calculator cannot establish any of those facts.
Can I use this for IU or a premixed blend?
No. International Units describe biological activity using a substance-specific standard. For a blend, every ingredient needs its own concentration; a total blend mass is not the mass of each ingredient.
Why can the same quantity produce different volumes?
Changing final volume changes concentration. A more dilute solution requires a larger volume to represent the same mass.