Pediatric Infusion Calculator (mcg/kg/min)

Calculate IV infusion rate in mL/h from a dose in mcg/kg/min, weight, and drug concentration.

For educational and clinical reference. Not a substitute for medical judgment. See the medical disclaimer.
Infusion rate
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References

  1. American Heart Association. 2020 Guidelines for CPR and ECC — Pediatric Advanced Life Support. Circulation. 2020;142(16_suppl_2):S469-S523.

How to use

  1. Enter desired dose (mcg/kg/min), weight (kg), and drug concentration (mcg/mL).
  2. Infusion rate (mL/h) updates instantly.
  3. Always double-check with a pharmacist or independent calculation.

Frequently asked questions

How is the infusion rate calculated?

Rate (mL/h) = (dose mcg/kg/min × weight kg × 60) / drug concentration (mcg/mL).

How do I derive the concentration?

Concentration (mcg/mL) = total drug (mcg) in the syringe or bag ÷ total volume (mL). Example: 200 mg in 100 mL → 200 000 / 100 = 2000 mcg/mL.

Which drugs are commonly dosed this way?

Vasoactive drugs (epinephrine, norepinephrine, dopamine, dobutamine), milrinone, and others where the dose is titrated to effect in mcg/kg/min.

What if the dose is in ng/kg/min?

Convert: 1 mcg = 1000 ng. Divide your ng/kg/min by 1000 first to use this calculator.

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