Free tool
Reconstitution calculator.
Enter vial weight, BAC water, and target dose. Get exact units on a 100-unit insulin syringe. No signup, no tracking, no math homework.
Reconstitution calculator
For standard 100-unit insulin syringes
Printed on the vial label. Typical values: 2, 5, 10 mg.
Your choice — usually 1, 2, or 3 ml. Affects unit count per dose.
Most research peptides are dosed in mcg; GLP-1s and TB-500 in mg.
Presets
Draw on a 100-unit syringe
10units
= 0.1 ml
Concentration
2,500 mcg/ml
Doses per vial
~20
Formula
units = (dose ÷ vial weight) × (BAC water × 100)
(250 ÷ 5000) × (2 × 100) = 10
For educational use. Verify against your physician's guidance and the vial label. Insulin syringes are not lab instruments — chase consistency, not decimals.
Want this on your phone with per-vial memory and dose history? Get the Peptide IA app.
The math, explained
A standard insulin syringe is 100 units = 1 ml. So the question is simply: what fraction of a milliliter contains your target dose?
Read the full guide for worked examples, common mistakes, and the cleanest reconstitution workflow.