MyPeptica

About MyPeptica

The peptide calculator that does the math so you don't have to.

MyPeptica is a free, beautifully-built reconstitution and dosing calculator. We turn the fiddly mg-to-units math into a live, visual experience — so you can reconstitute with total confidence, every time.

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Why we built it

Accuracy, made effortless

Most dosing mistakes come from rushed mental math. We replaced the guesswork with a clear, animated tool anyone can trust.

Real-time math

Concentration, draw volume and syringe units recalculate instantly as you move a slider — no "calculate" button, no waiting.

See it to believe it

A live vial, concentration gauge and animated syringe show you exactly what your numbers mean before you draw a thing.

Yours to keep

Save protocols, build stacks and track each vial's burn-down. One email signs you in — no passwords, free forever.

How it works

Four steps from powder to perfect dose

1

Enter your vial

Peptide amount in mg and the bacteriostatic water you'll add in ml.

2

Set your dose

Slide to your target dose in mcg. Concentration updates live.

3

Read your draw

We show the exact units on your syringe, with a visual guide.

4

Save & track

Store protocols, export a PDF and watch your vial deplete over time.

The formula

The exact math we run

Concentration (mcg/ml)
Peptide amount (mcg) ÷ Water volume (ml)
Required volume (ml)
Desired dose (mcg) ÷ Concentration (mcg/ml)
Syringe units
Required volume × units-per-ml (100 for U-100, 40 for U-40, or ml directly)
✦

Example

5 mg peptide + 2 ml water = 2,500 mcg/ml. For a 500 mcg dose, draw 0.20 ml = 20 units on a U-100 syringe.

FAQ

Questions, answered

Is MyPeptica really free?+
Yes. The calculator is 100% free and always will be — no account needed to use it. Creating a free account (just your email) unlocks saving protocols, favorites, history, PDF export and sharing.
Why do I need to enter my email to save?+
Your email is how we send you a secure, one-step magic login link and how your saved protocols sync across devices. No password to remember, and you can unsubscribe anytime.
Which syringes are supported?+
U-100 insulin (100 units/ml), U-40 insulin (40 units/ml), and standard 1 ml syringes read directly in millilitres. Switch between them anytime and the visual updates instantly.
Is this medical advice?+
No. MyPeptica is an educational calculation tool only. It does not provide medical advice, diagnosis or treatment. Always consult a qualified healthcare professional. See our Medical Disclaimer.
Where is my data stored?+
Your protocols, favorites and history are stored securely in our database, tied to your email address. See our Privacy Policy for full details.

Ready to calculate?

Jump into the free calculator — no account required. Save your first protocol whenever you're ready.

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