keGFR
Creatinine₁, creatinine₂, hours between, age, sex; weight optional. Creatinine in mg/dL.
Calculator
How it works
keGFR combines average and rate of change of CKD-EPI GFR between two creatinine values (Chen et al.).
Limits
Assumes stable muscle mass and no dialysis; not validated in all acute settings.
Educational tool only—not for diagnosis or treatment decisions.