Calculate APACHE II score with predicted mortality. Enter patient parameters for instant ICU severity scoring.
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Age (years)
Temperature (°C)
Mean BP (mmHg)
Heart Rate (bpm)
Resp Rate (/min)
GCS Score
Serum Sodium (mEq/L)
Serum Potassium (mEq/L)
Serum Creatinine (mg/dL)
Haematocrit (%)
WBC (x1000/mm³)
Acute Renal Failure?
Chronic Health Points
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APACHE II Score
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Predicted Mortality
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Risk Category
For clinical guidance only. Always use clinical judgement.
How it works
1
Enter parameters
Fill in the patient's vital signs and lab values.
2
Auto-calculates
Score updates instantly as you type.
3
Interpret result
See score, predicted mortality and risk category.
Why use this tool?
✓ Instant calculation — Score calculates as you type — no submit button needed.
✓ Mortality estimate — Predicted mortality percentage based on original validation data.
✓ Mobile-friendly — Works on phone at the bedside.
✓ No login — Just open and use.
Frequently Asked Questions
APACHE II (Acute Physiology and Chronic Health Evaluation II) is used to assess severity of illness in ICU patients and predict hospital mortality. Higher scores indicate greater severity.
Scores ≤9 indicate low risk (~8% mortality), 10–19 moderate risk (~25%), 20–29 high risk (~55%), and ≥30 very high risk (~85%).
Patients with severe organ system insufficiency or immunocompromised state get 5 points if non-operative or emergency post-op, and 2 points if elective post-op.
APACHE II was validated in medical and surgical ICU patients. It is less accurate in specific populations like burns, cardiac surgery or paediatrics.