Tools that make peptides tangible
Play with sequences, classification, and biophysical approximations — built for learning, not lab reports.
Sequence → properties
Type a one-letter sequence. Watch hydrophobicity, charge, mass, and residue chemistry update in real time.
Educational approximations using average residue masses and standard pKa tables. Real peptides depend on termini, modifications, and experimental conditions.
Peptide Length Explorer
Short bioactive peptides such as hormones and neuropeptides (e.g. oxytocin).
Note: The boundary between peptides and proteins is not strict and varies by field.
Molecular weight estimator
Enter a one-letter amino acid sequence for a quick average-mass estimate.
Reconstitution calculator
Enter how much peptide is in the vial and how much diluent (e.g. bacteriostatic water) is added. The tool returns the resulting solution concentration — and, for any amount you type, the volume it corresponds to. This is educational arithmetic, not a dosing recommendation.
Enter an amount to see the volume it corresponds to.
Educational concentration mathematics only. This tool does not recommend a dose, amount, or protocol, and nothing here is medical advice. Many peptides are not authorized by Health Canada for human use — see our reconstitution and bacteriostatic-water guides for context.
The word 'peptide' comes from the Greek 'peptos', meaning 'digested'.