Vasopressor Rate Calculator

Fast mL/hr calculations for norepinephrine, epinephrine, dopamine, dobutamine, phenylephrine, and vasopressin. Supports weight-based and fixed-rate infusion orders.

Norepinephrine

16 mg / 250 mL NS

Low — Titrate Up

First-line vasopressor in septic shock. Start 0.01–0.1 mcg/kg/min.

Dose Rate

0.010

mcg/kg/min

drag ↕

IV Pump

0.66mL/hr

Quick Picks

Patient Weight

70kg

Dose

0.01

mcg/kg/min

Weight

Rate

0.7

mL/hr

(0.01 × 70 × 60) ÷ 64 mcg/mL = 0.7 mL/hr

Shiftside Pro

Custom Concentrations

Saved Drug Profiles

Titration Log

Weight-Based Targets

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2 custom concentrations for Norepinephrine, titration history, and saved profiles.

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Clinical Safety

Drip calculations support bedside decision-making but do not replace clinical judgment. Verify all doses, concentration, patient weight, and pump settings per institutional protocol before infusion.

Common vasopressor concentrations

Drug	Standard mix	Concentration
Norepinephrine	4 mg / 250 mL	16 mcg/mL
Norepinephrine	8 mg / 250 mL	32 mcg/mL
Epinephrine	4 mg / 250 mL	16 mcg/mL
Dopamine	400 mg / 250 mL	1600 mcg/mL
Dobutamine	500 mg / 250 mL	2000 mcg/mL
Vasopressin	20 units / 100 mL	0.2 units/mL

Concentrations vary by institution. Always confirm with your pharmacy before infusing.

Frequently asked questions

What vasopressors does this calculator support?

Norepinephrine, epinephrine, dopamine, dobutamine, phenylephrine, vasopressin, and any custom drug with an entered concentration.

How is vasopressin calculated?

Vasopressin is typically ordered in units/min. The calculator converts to mL/hr using concentration (units/mL) and ×60 for the per-hour conversion.

Can I use this in the ICU and ED?

Yes. The calculator is designed for bedside use in time-critical settings. It has no account requirement and works offline as an installable web app.