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Free SOFA score calculator for six organ systems: oxygenation (PaO₂/FiO₂), platelets, bilirubin, vasopressor tier, Glasgow Coma Scale, and renal function (creatinine ± urine output). Designed for education and training—not as a standalone substitute for your ICU’s sepsis bundle or order sets.
Last updated: April 13, 2026
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Respiratory
PaO₂/FiO₂ ≈ 213 mmHg
9
/ 24
Higher SOFA scores correlate with greater ICU mortality risk in population studies; individual prognosis depends on diagnosis, treatment, and trajectory—not a single number.
ICU scoring
Apply SOFA per your hospital’s sepsis/organ-failure protocol. Vasopressor tiers require µg/kg/min dosing; this form asks you to assign the cardiovascular subscore explicitly.
FiO₂ entered as room air (21%) through 100% oxygen; ratio drives the hypoxemia gradient with support gating for the top two levels.
Thrombocytopenia and hyperbilirubinemia contribute independent subscores reflecting coagulation and hepatic dysfunction.
Cardiovascular points follow classic dopamine/epinephrine/norepinephrine dose bands; you confirm the tier after bedside titration.
Glasgow Coma Scale sum maps to SOFA neurologic strata from alert to deeply obtunded.
When urine output is entered, the worse of creatinine-based and output-based points is kept—matching common SOFA teaching.
SOFA deltas over 24–48 hours are often used in trials; this page computes a single time point for learning and checklist practice.
Hypoxemia on 40% O₂ with support, mild shock on low-dose pressor, GCS 12, AKI with oliguria.
SOFA total
9
Illustrative default inputs only
SOFA helps quantify organ dysfunction across domains that are frequently deranged in sepsis, ARDS, and shock. It is often shown alongside lactate clearance, fluid balance, and infection source control in quality improvement and research. Because thresholds for vasopressors and mode of oxygen delivery are protocol-specific, always reconcile this calculator with your unit’s policy.
Use GCS calculator to double-check neurologic inputs.
Get Custom Calculator for Your PlatformA creatinine of 2.2 mg/dL might score 2 on the creatinine scale, but 400 mL urine in 24 hours scores 3 on the urine-output scale—so renal SOFA becomes 3. That design captures acute kidney injury even before creatinine peaks, which is why fluid balance and Foley documentation matter in real audits.
Share with residents reviewing ICU severity scores.
Suggested hashtags: #SOFA #ICU #Sepsis #CriticalCare #Calculator