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Peptide Concentration & Dilution Calculator
Work out stock-solution concentration (mg/mL) and the aliquot volume for a target mass of lyophilised research peptide. In vitro laboratory use only.
Result Peptide weight: mg Solvent volume: mL Required aliquot: mcg Volume required: mL Volume in microlitres: μL
This volume is very small. Below about 10 μL, transfer accuracy falls off on most air-displacement pipettes — consider a larger solvent volume or an intermediate dilution.
This free peptide calculator helps researchers work out reconstitution, concentration and sample size in the lab — including for BPC-157, TB-500, GHK-Cu, CJC-1295 and other lyophilised peptides used in in vitro studies. Enter your vial amount in mg, your mixing water in mL and a required sample size in mcg or mg. The tool returns the stock concentration in mg/mL and the transfer volume in mL and microlitres.
Also referred to as a peptide concentration calculator, peptide dilution calculator, peptide dilution calculator, or research peptide calculator — it converts mg to mg/mL and returns aliquot volumes in mL and microlitres for typical research vials.
Example 1: 10mg peptide vial
Scenario: 10mg peptide, want 250 mcg sample
Suggested solvent volume: Add 2 mL solvent
Result: Transfer 0.05mL (50 μL) for ~250 mcg sample
Example 2: 5mg peptide vial
Scenario: 5mg peptide, want 500 mcg sample
Suggested solvent volume: Add 1 mL solvent
Result: Transfer 0.1mL (100 μL) for ~500 mcg sample
For in vitro research use only. Illustrative measurement scenarios — not human or veterinary guidance.
BPC-157 5mg
Vial: 5mg lyophilised BPC-157
Stock solution: 2 mL solvent → 2.5 mg/mL
250 mcg aliquot: transfer 0.1mL (100 μL)
TB-500 5mg
Vial: 5mg lyophilised TB-500
Stock solution: 2 mL solvent → 2.5 mg/mL
500 mcg aliquot: transfer 0.2mL (200 μL)
GHK-Cu 50mg
Vial: 50mg lyophilised GHK-Cu
Stock solution: 5 mL solvent → 10 mg/mL
1 mg aliquot: transfer 0.1mL (100 μL)
CJC-1295 2mg
Vial: 2mg lyophilised CJC-1295
Stock solution: 2 mL solvent → 1 mg/mL
100 mcg aliquot: transfer 0.1mL (100 μL)
How do I reconstitute lyophilised peptides?
Enter the vial contents in mg and the solvent volume in mL; the tool returns the resulting stock concentration in mg/mL. Solvent selection and all handling are determined by the receiving laboratory under its own protocols. For in vitro research only.
What volume units are shown?
Transfer volumes are given in millilitres and microlitres (1 mL = 1000 μL).
How do I convert mg to mcg?
1 mg equals 1000 mcg. The calculator keeps both in sync.
What is the difference between mL and μL?
Both are volume. A microlitre is one thousandth of a millilitre, so 1 mL = 1000 μL.
Does this calculator support BPC-157, TB-500, GHK-Cu and other research peptides?
Yes — it works with any lyophilised peptide. Select the vial size in mg, enter the solvent volume and your required sample size. Output is for in vitro laboratory research only.
What's a research peptide concentration calculator?
A research peptide concentration calculator converts your vial weight (mg) and solvent volume (mL) into a concentration (mg/mL), then returns the transfer volume for a target aliquot mass. Also called a peptide dilution calculator, dilution calculator, or research peptide calculator.