
Precision.
Without the guesswork.
A beautifully simple workspace for concentration math, syringe visualization, and personal tracking.
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Reconstitution Calculator
Enter your values for an instant visual calculation.
Switch between mcg and mg without changing the dose amount.
Estimated from vial content ÷ desired dose. Actual usable doses can be fewer due to preparation and measurement losses. This does not recommend a dose.
Diagram is schematic, not a calibrated measuring instrument. U-100 means 100 units per mL. This tool performs arithmetic only; it does not recommend a dose or establish product safety.
mL → mg & mcg converter
Convert a known liquid concentration into mass using syringe scale markings.
Enter the actual labelled concentration or verified final solution volume. A reconstituted vial's final volume may differ from the liquid added.
Changing mL updates the scale reading; changing the scale reading updates mL. The syringe label (U-100 or U-40) determines the volume conversion.
Same volume, different syringe sizes
Important: Syringe markings here represent a volume scale, not a medication dose. A 0.5 mL U-100 syringe uses the same scale as a 1 mL U-100 syringe; the capacity differs. U-40 and U-100 are not interchangeable for insulin. This is a reference calculation only, not a dose recommendation, a syringe-reading guide, or medical advice. Confirm medication, concentration, equipment and instructions with a clinician or pharmacist.
Personal log
Keep your records in one place.
Inventory
Stay organized at a glance.
Optional cloud account
Back up entries securely when you choose.
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Cloud sync is optional and manual. Configure the deployed website URL in Supabase Auth before using email sign-in. Keep your browser data until you verify your cloud backup.