Griffin's Toolkit
Calculators
Convert units, plan a dose, mix a vial, or print a label. No account needed — just numbers.
Dose → Volume
How much liquid to draw for a target dose, with a live U-100 syringe visualizer.
OpenReconstitution
Mix a powdered vial with bacteriostatic water and get concentration, draw volume, and units.
OpenBlend Reconstitution
Multi-peptide blends like BPC-157 / TB-500 — per-compound amounts in every draw.
OpenMass Converter
Convert between micrograms, milligrams, and grams.
OpenVolume ↔ Syringe Units
Convert mL to insulin syringe units on a U-100 scale.
OpenVial Transition
Split a dose between an almost-empty vial and a new one, even at different concentrations.
OpenNasal Spray Calculator
Dose per spray, sprays per bottle, and concentration for nasal peptide research.
OpenTopical Peptide Calculator
How much carrier base to mix with topical peptide powder to hit a target percentage.
OpenPeptide Label Generator
Printable vial labels sized for 3 mL peptide vials and Niimbot label makers.
OpenCost Per Dose Calculator
Turn a vial price into cost per dose, per week, and per month — discounts included.
OpenTDEE Calculator
Maintenance calories plus deficit and surplus targets, using the Mifflin-St Jeor equation.
OpenReference only. Always double-check critical doses with a qualified professional. Volume↔units assumes a standard U-100 insulin syringe (100 units = 1 mL).