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FOUR Score

FOUR 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.

FOUR Score

Eye response (E, 0–4)
Motor response (M, 0–4)
Brainstem reflexes (B, 0–4)
Respiration (R, 0–4)
FOUR Score
16of 16
E: 4 tracking/blinking to command, 3 open but not tracking, 2 open to loud voice, 1 open to pain, 0 closed with painM: 4 thumbs-up, fist or peace sign to command, 3 localizes pain, 2 flexion, 1 extension, 0 none or myoclonus statusB: 4 pupil and corneal reflexes present, 3 one pupil wide and fixed, 2 pupil or corneal reflexes absent, 1 both absent, 0 pupil, corneal and cough reflexes absentR: 4 not intubated, regular, 3 Cheyne–Stokes, 2 irregular, 1 breathes above ventilator rate, 0 at ventilator rate or apneaFOUR Score: calculated with the published clinical method, with result interpretation. A reference tool that does not replace a doctor's advice.

More about: FOUR Score

What it calculates

The “FOUR Score” calculator computes FOUR Score in of 16 from 4 parameters: eye response (e, 0–4), motor response (m, 0–4), brainstem reflexes (b, 0–4), respiration (r, 0–4).

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

Example calculation

With parameters Eye response (E, 0–4) = 4, Motor response (M, 0–4) = 4, Brainstem reflexes (B, 0–4) = 4, Respiration (R, 0–4) = 4 the result is 16 of 16 (E: 4 tracking/blinking to command, 3 open but not tracking, 2 open to loud voice, 1 open to pain, 0 closed with pain).

How to use

  1. Enter eye response (e, 0–4), motor response (m, 0–4), brainstem reflexes (b, 0–4) and respiration (r, 0–4) — each field above is adjustable with a slider.
  2. FOUR Score (of 16) 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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