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Reverse peptide calculator
Enter a vial amount, amount to convert, and U-100 scale mark to calculate the corresponding liquid volume.
Reverse calculator
Solve for liquid volume from a vial amount, amount, and U-100 scale mark you enter.
Enter every value to see the calculation.
Unit safety: a U-100 mark is a volume scale (100 units = 1 mL), not a medication amount. FDA has reported medication errors when mg, mL, and syringe units were confused. Verify the intended amount, concentration, and exact device with the dispensing pharmacy or licensed clinician. Read the FDA notice.
Calculation only. Prominent display values are rounded to at most 2 decimals for U-100 units and cost, and 3 decimals for mL; calculation-value lines retain up to 8 decimals. Math uses unrounded values throughout. PepRack does not recommend a dose, schedule, injection method, or treatment.
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What is a reverse calculation?
It solves for liquid volume after you provide all three values.
Is the result a recommendation?
No. It is math on user-entered values, not treatment or preparation advice.