Peptide reconstitution calculator

Enter mass and final solution volume. See the concentration and the math.

Inputs

Vial and volume

Use the total solution volume after mixing. Leave the target blank for concentration only, or enter an amount to find the volume of one portion (an aliquot). This is arithmetic, not a dose recommendation.

Reconstitution result

2.5 mg/mL

2.5 mg/mL equals 2.5 mcg/uL.

Read this as concentration first, then volume second. The calculator is not checking whether the source material or workflow is appropriate.
Total peptide
5,000 mcg
Formula
5 mg / 2 mL

Full calculator explanation

Check the result in two lines

5 mg / 2 mL = 2.5 mg/mL
2.5 mcg/uL x 40 uL = 100 mcg

mg/mL and mcg/uL have the same numeric value. A portion (aliquot) is simply a measured part of the solution. These numbers are arithmetic examples, not suggested amounts.

Why the concentration number stays the same

Which volume should you enter?

Use the total solution volume after mixing, not just the liquid added. The calculator assumes a uniform solution and does not account for losses.

Read a worked concentration example

This tool checks arithmetic only. It cannot verify material identity, sterility, suitability, or safety.