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practical calculator

Reconstitution calculator

Convert vial amount, diluent volume, and a dose you already have into concentration, mL, and U-100 syringe markings.

Educational math tool
Peptivius Calculator is an educational math tool. It converts the vial amount, diluent volume, and dose you enter into concentration, mL, and U-100 syringe markings. It does not prescribe, recommend, validate, or adjust dose. Use only values provided on the medication label or by a licensed clinician.
local math only

Dose math inputs

Use label or clinician values only.
handling note

Follow the manufacturer’s and clinician’s instructions for diluent choice, sterile technique, storage, beyond-use dating, and disposal. Peptivius does not validate diluent suitability or teach injection technique.

u-100 syringe size
selected scale0.5 mL / 50 UI
within scale
010203040500 UI50 UI
draw result10 UI0.100 mL
concentration2500 mcg/mL
mcg / marking25 mcg
full doses20
fill20%
u-100 markings

U-100 syringe markings are volume markings. They are not pharmacological International Units (IU). Do not use this calculator to convert medication IU.

step by step

Calculation trace

  1. 5 mg × 1000 = 5,000 mcg total
  2. 5,000 mcg ÷ 2 mL = 2500 mcg/mL
  3. 250 mcg ÷ 2500 mcg/mL = 0.100 mL
  4. 0.100 mL × 100 = 10 U-100 markings
  5. 5,000 mcg ÷ 250 mcg = 20 full doses
This tool only converts the values entered here. It does not recommend dose, route, schedule, diluent, storage, or technique.