Peptide Calculator

Inspiration

Peptide calculations are straightforward on paper, but in practice users still make frequent mistakes when converting between mg, mcg, ml, and syringe units. I wanted to build a simple tool that reduces repetitive arithmetic, makes the assumptions visible, and supports fast self-checking with worked examples.

What it does

Peptide Calculator helps users calculate peptide concentration in mg/ml, dose volume in ml, U-100 insulin syringe units, mcg per unit, and estimated total doses per vial. The app includes a reconstitution calculator, a dosage calculator for known concentration, a step-by-step guide, and an FAQ page with formula-based answers.

How I built it

I built the app as a focused Next.js web project with a lightweight calculator workflow, static content pages, and SEO-oriented landing pages. The product structure emphasizes clarity: calculators for immediate results, content pages for education, and explicit formulas to make every output easier to verify.

Challenges I ran into

The main challenge was keeping the product narrow and useful at the same time. It would have been easy to overbuild the experience, but the better decision was to stay focused on the calculations people need most often and make those calculations transparent.

Accomplishments that I'm proud of

I shipped a complete user flow instead of a single calculator: homepage entry point, dedicated reconstitution and dosage calculators, a practical guide, and an FAQ page. I also made the assumptions explicit so the outputs are easier to trust and verify.

What I learned

I learned that in narrow utility products, trust comes less from visual complexity and more from clarity, examples, and explicit assumptions. Even simple math tools benefit from better content structure and educational context.

What's next for Peptide Calculator

Next, I’d improve discoverability, expand more worked examples, and keep refining the educational content around peptide reconstitution and dosage math while preserving the product’s narrow scope.

Built With

• codex
• css
• nextjs