Sign inSign up
Interactive calculator

Peptide Dose &
Unit Converter

Four small, live converters for the units that trip people up — micrograms and milligrams, millilitres and insulin units, dose-by-concentration, and activity-based IU. Type in either box; the other updates instantly.

  • Free · no sign-up
  • Runs in your browser
  • Nothing stored

Micrograms ↔ Milligrams

mcg
mg
Conversion1 mg = 1000 mcg

Millilitres ↔ Insulin units (U-100)

mL
u
Conversion1 mL = 100 u · 1 u = 0.01 mL

Micrograms ↔ Insulin units (by concentration)

mg
Total peptide in the vial.
mL
Diluent added to the vial.
mcg
u
Concentration2.5 mg/mL
Per unit on syringe25 mcg/unit

International units ↔ Milligrams

IU/mg
IU measures activity, not mass — this factor is substance-specific and you must supply the correct one for your peptide (e.g. HGH is commonly quoted at ~3 IU per mg).
IU
mg
Using factor3 IU/mg · 0.3333 mg/IU

This calculator is for educational purposes only and is not medical advice, diagnosis, or treatment. Results are estimates based on published formulas and population averages — your individual values may differ. Nothing here is calculated on a server: everything runs in your browser and no data is stored or sent anywhere. Always consult a qualified clinician before making health, medication, or training decisions.