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AIR Score

AIR Score: calculated with the published clinical method, with result interpretation. A reference tool that does not replace a doctor's advice.

ℹ Reference calculation based on the published method. It does not replace a clinical examination or a doctor's decision.

AIR Score

Vomiting (1 = yes)
Right iliac fossa pain (1 = yes)
Rebound or guarding (0 = none, 1 = light, 2 = medium, 3 = strong)
Body temperature°C
Neutrophils%
White blood cells×10⁹/L
C-reactive proteinmg/L
AIR score
0points
AIR Score: calculated with the published clinical method, with result interpretation. A reference tool that does not replace a doctor's advice.
Probability of appendicitis
Low

More about: AIR Score

What it calculates

The “AIR Score” calculator computes AIR score in points from 7 parameters: vomiting (1 = yes), right iliac fossa pain (1 = yes), rebound or guarding (0 = none, 1 = light, 2 = medium, 3 = strong), body temperature (°C), neutrophils (%), white blood cells (×10⁹/L), c-reactive protein (mg/L).

Used by professionals and patients to assess health metrics, dosages, and risks.

Example calculation

With parameters Vomiting (1 = yes) = 0, Right iliac fossa pain (1 = yes) = 0, Rebound or guarding (0 = none, 1 = light, 2 = medium, 3 = strong) = 0, Body temperature = 37.2 °C, Neutrophils = 65 %, White blood cells = 9 ×10⁹/L, C-reactive protein = 5 mg/L the result is 0 points.

How to use

  1. Enter vomiting (1 = yes), right iliac fossa pain (1 = yes), rebound or guarding (0 = none, 1 = light, 2 = medium, 3 = strong), body temperature, neutrophils, white blood cells and c-reactive protein — each field above is adjustable with a slider.
  2. AIR score (points) is calculated automatically as you type.
  3. Check the worked example below to see the formula applied to real numbers.
  4. Copy the result or bookmark this calculator.

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FAQ

How is BMI calculated?
BMI = weight (kg) / height (m)². Example: 70 kg / (1.75 m)² = 22.9. The WHO normal range is 18.5–24.9; below that is underweight, 25–29.9 is overweight, and 30+ is obese.
Is BMI accurate for everyone?
No. BMI does not distinguish muscle from fat, so athletes may show a high BMI with low body fat. It is also less reliable for teenagers, pregnant people, older adults, and very tall or short individuals.
What are the BMI categories?
Underweight: below 18.5. Normal: 18.5–24.9. Overweight: 25–29.9. Obese class I: 30–34.9; class II: 35–39.9; class III: 40+.
What is a better measure than BMI?
Body fat percentage, waist-to-height ratio (aim for under 0.5), and waist circumference give a clearer picture of health than BMI alone.

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