I built PeptideCalculator.site — a formula-first peptide dosing & reconstitution calculator (with visible math)
I kept seeing the same problem: people can understand the protocol, but get tripped up by the math — mg vs mcg, mg/ml concentration, and how that translates to a U‑100 insulin syringe reading.
So I built Peptide Calculator: a small, fast, “show-your-work” calculator + reference hub for peptide reconstitution and dose conversion. It’s designed for educational / research math only — not medical advice.
What it does
Reconstitution calculator: start from vial strength (mg) + water added (ml) + target dose (mcg) → get concentration (mg/ml), draw volume (ml), U‑100 units, and estimated total doses.
Dosage calculator: if you already know the concentration (mg/ml), enter that + target dose (mcg) → get ml, U‑100 units, and “mcg per unit” for repeat dosing.
Guides + FAQ: step-by-step walkthrough, common mistakes (like mixing up mg and mcg), labeling discipline, dilution/mixing concepts, and quick Q&A.
The “trust” goal: no black-box calculators
A core decision was to keep assumptions and formulas explicit across the site:
1000 mcg = 1 mg
U‑100 syringe convention: 1 ml = 100 units
Concentration is the anchor; everything else derives from it
I also included worked examples (e.g., 5 mg + 2 ml + 250 mcg → 10 units) so users can sanity-check before relying on their own inputs.
What I’d love feedback on
Are the outputs the right ones for real-world “how much do I draw?” decisions?
What’s the best way to make this safer/more responsible while still being useful as pure math?
Any ideas for features that improve correctness (e.g., printable labels, saved batch notes, alternative syringe standards), without turning it into “medical advice”?
If you’re willing to take a 30-second look: https://peptidecalculator.site
