Pediatric kidney function tool
Pediatric eGFR Calculator Using the Bedside Schwartz Formula
Estimate GFR for children under 18 using height and serum creatinine. The calculator opens in pediatric mode, with the adult CKD-EPI calculator available when appropriate.
Online eGFR Calculator from Creatinine, Age & Sex (CKD-EPI 2021)
Enter serum creatinine, age, and sex to calculate eGFR online and estimate your kidney function using the current CKD-EPI 2021 equation.
Bedside Schwartz Formula: eGFR = (0.413 × Height in cm) / Serum Creatinine in mg/dL
Enter Your Values
Enter serum creatinine and height to calculate pediatric GFR using the Bedside Schwartz equation.
Why children need a pediatric eGFR equation
Children have developing bodies and different relationships between height, muscle mass, and creatinine. The Bedside Schwartz equation estimates eGFR as 0.413 multiplied by height in centimeters, divided by serum creatinine in mg/dL.
Important pediatric eGFR limitations
This estimate is for education and does not replace pediatric nephrology care. Infants, children with rapidly changing kidney function, and children with unusual body composition may require additional clinical assessment.