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Insulin Infusion Rate Calculator

Work out insulin infusion rate instantly with clear inputs, formula shown and shareable results.

About Insulin Infusion Rate Calculator

Converts a fixed-rate weight-based insulin infusion, such as the 0.1 units/kg/h used in diabetic ketoacidosis protocols, into a pump rate.

Formula

Fixed-rate insulin infusion

Units per hour = weight (kg) x units/kg/h; pump rate (mL/h) = units per hour / concentration (units/mL)

Worked example

With the default values below, Insulin Infusion Rate Calculator returns Insulin rate of 7.00. Change any input above and every figure here is recalculated in your browser.

Inputs used

Body weightaccepts 2–250 kg
70 kg
Fixed rateaccepts 0.02–0.5 units/kg/h
0.1 units/kg/h
Infusion concentrationaccepts 0.1–10 units/mL
1 units/mL

Results

Insulin rate
7.00 units/h
Pump rate
7.00 mL/h
Insulin over 24 hours
168.0 units

Step by step

  1. 1Values used
  2. 2Fixed-rate insulin infusion
  3. 3Insulin rate= 7.00 units/h
  4. 4Pump rate= 7.00 mL/h
  5. 5Insulin over 24 hours= 168.0 units

Assumptions and limits

  • The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
  • This is an estimate for general information and not professional medical advice. See the full disclaimer for the limits that apply to this kind of calculator.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.

Frequently Asked Questions

What concentration is standard?

50 units in 50 mL of sodium chloride 0.9%, giving 1 unit per mL.

When does the rate change?

Protocols adjust the rate if ketones or bicarbonate fail to improve at the expected hourly rate.

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