GFR Calculator for Children
Calculate estimated Glomerular Filtration Rate (eGFR) for children using the Bedside Schwartz formula.
Why Use Our Pediatric GFR Calculator?
Standard Formula
Uses the updated "Bedside Schwartz" equation (2009), the gold standard for estimating GFR in children.
Secure & Private
No health data is stored or transmitted. All calculations happen instantly in your browser.
Easy to Use
Simple interface designed for parents and healthcare students. Just enter height and creatinine.
Understanding GFR in Children
Glomerular Filtration Rate (GFR) estimates how much blood passes through the glomeruli (tiny filters in the kidneys) each minute.
In children, GFR is difficult to measure directly, so we estimate it (eGFR) using formulas based on height and blood creatinine levels.
The Formula
We use the Bedside Schwartz Equation:
Note: This constant (0.413) is specific for methods using standardized creatinine assays.
Frequently Asked Questions
What is the Bedside Schwartz formula?
The Bedside Schwartz formula is the standard method for estimating GFR in children. The formula is: GFR = (0.413 × Height in cm) / Serum Creatinine in mg/dL.
What is a normal GFR for a child?
For children over 2 years old, a normal GFR is typically above 90 mL/min/1.73m². Values between 60-89 may indicate mild decrease, but can be normal depending on other factors.
Why is GFR important?
GFR (Glomerular Filtration Rate) is the best test to measure your level of kidney function and determine your stage of kidney disease.