IV Therapy
mcg/min to mL/hr Calculator
Pump rate for infusions ordered in mcg/min, such as nitroglycerin.
Formula
mL/hr = (mcg/min × 60) ÷ (mg/mL × 1,000)
How it is used
- Work out the bag concentration first: total mg in the bag ÷ total mL (a 50 mg in 250 mL nitroglycerin bag is 0.2 mg/mL, or 200 mcg/mL).
- For drugs ordered per kilogram (dopamine, norepinephrine), use the mcg/kg/min calculator instead.
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For education and exam preparation only. Follow your institution’s protocols. For education and exam preparation only. Verify results independently and follow your institution’s protocols. Not a substitute for clinical judgment.