Diagnostic Accuracy Calculator
Calculate comprehensive diagnostic test performance metrics
Enter the 2x2 confusion matrix values:
Disease +
Disease -
Test +
Test -
About Diagnostic Accuracy
Sensitivity: TP / (TP + FN) - ability to detect disease
Specificity: TN / (TN + FP) - ability to detect non-disease
LR+: Sensitivity / (1 - Specificity)
LR-: (1 - Sensitivity) / Specificity
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.