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SOFA Score Calculator

Work out sofa score instantly with clear inputs, formula shown and shareable results.

About SOFA Score Calculator

Adds the six SOFA organ system scores, each 0 to 4, and reports the mortality band associated with the total in the original validation cohorts.

Formula

SOFA

Total = respiratory + cardiovascular + neurological + coagulation + liver + renal, each scored 0-4 (maximum 24)

Worked example

With the default values below, SOFA Score Calculator returns SOFA total of 8. Change any input above and every figure here is recalculated in your browser.

Inputs used

Respiratory points (PaO2/FiO2)accepts 0–4
2
Cardiovascular points (MAP or vasopressors)accepts 0–4
2
Neurological points (Glasgow Coma Scale)accepts 0–4
1
Coagulation, liver and renal points combinedaccepts 0–12
3

Results

SOFA total
8
Reported mortality band
20%
Severity band
Moderate
Maximum possible score
24

Step by step

  1. 1Values used
  2. 2SOFA
  3. 3SOFA total= 8
  4. 4Reported mortality band= 20
  5. 5Severity band= Moderate
  6. 6Maximum possible score= 24

Assumptions and limits

  • The result is derived only from the 4 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 whole numbers, 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

Is SOFA a single measurement?

It is repeated daily; the change over time and the maximum score both carry prognostic weight.

How does it relate to Sepsis-3?

An acute rise of 2 or more SOFA points with infection defines sepsis under the Sepsis-3 consensus.

Related Calculators

SOFA Score Calculator – Calculate SOFA total | Calcrivo