AKIN Classification for Acute Kidney Injury (AKI)

Stage by creatinine change (≥1.5× or ≥0.3 mg/dL, 2×, 3× or ≥4.0) and/or urine output bands (educational reference).

Calculator

Enter baseline and current serum creatinine (mg/dL); optional urine output criterion:

Educational tool only—not for diagnosis or treatment decisions.