There is no fixed number of units in a microgram. Units on a U-100 insulin syringe measure volume: 1 unit = 0.01 mL. How many units a given mcg takes depends on how concentrated your vial is.
units = mcg ÷ (concentration in mcg per mL) × 100
Arithmetic example: at 2,500 mcg per mL, 250 mcg is 0.1 mL = 10 units. At 5,000 mcg per mL the same 250 mcg is 5 units. 1 mg = 1,000 mcg.
About this tool
- It does math on numbers you type. It never suggests a dose, a substance, a schedule or a source.
- Nothing you type is sent anywhere. The math runs in your browser. A share link keeps your numbers after the # sign, which browsers do not send to any server, and nothing is saved.
- SoftMaxx AI sells no peptides and takes no vendor money. No links on this page earn us anything.
- For adults 18+. Not medical advice. Your prescriber sets your dose; your pharmacist can check your math.
- Report side effects to FDA MedWatch (US) or Canada Vigilance (Canada). FDA’s page on unapproved GLP-1 drugs explains its multi-dose vial and dosing concerns.
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