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APACHE II Score Calculator

Result

Calculated result 0 Based on the values entered.
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APACHE II Score Calculator The APACHE II Score Calculator adds up the individual point scores of a critically ill patient to give a severity-of-disease score and a rough estimate of in-hospital mortality. This is a simplified version that sums the points — free online calculator.

Formula

The APACHE II Score Calculator updates instantly as you change any component's points.Formula: APACHE II score = sum of all component pointsInput definitions:
  • APACHE II Score Calculator calculates its result from Age Points, Temperature Points, Heart Rate Points, Systolic BP Points. It uses the formula The APACHE II Score Calculator updates instantly as you change any component's points.Formula: APACHE II score = sum of all component pointsInput definitions:. Change any input to recalculate the result instantly. This is an informational calculation and is not medical advice.
  • The main inputs are Age Points, Temperature Points, Heart Rate Points, Systolic BP Points. Enter them in the units and format shown in the calculator.
  • Use the measurement units shown beside each field. The result is an estimate and should be interpreted in context.
  • Changing any input above recalculates the result with the same calculation engine used by this page.

Example: APACHE II Score

Inputs
  • Age Points: 0
  • Temperature Points: 0
  • Heart Rate Points: 0
  • Systolic BP Points: 0

Using Age Points = 0, Temperature Points = 0, Heart Rate Points = 0, Systolic BP Points = 0, the calculated result is 0.

Sample result: Calculating…

Frequently asked questions

What does the APACHE II Score calculate?

APACHE II Score Calculator The APACHE II Score Calculator adds up the individual point scores of a critically ill patient to give a severity-of-disease score and a rough estimate of in-hospital mortality. This is a simplified version that sums the points — free online calculator.

Which values should I enter?

Enter Age Points, Temperature Points, Heart Rate Points, Systolic BP Points using the units and format shown beside each field.

What formula does this calculator use?

The calculator uses the following relationship: The APACHE II Score Calculator updates instantly as you change any component's points.Formula: APACHE II score = sum of all component pointsInput definitions:.

Why might my result differ from another source?

Results can differ because measurement methods, rounding and assumptions vary. This calculator is an estimate and is not a medical diagnosis.

Does the result update automatically?

Yes. Changing an input updates the result using the same calculation engine shown on this page.

Page information

Updated: October 7, 2026