Privacy Policy for Our Free Online eGFR Calculator
Last updated: July 19, 2026
Welcome to eGFR Calculator (egfrcalculator.org). This privacy policy explains how we handle information when you use our free online eGFR calculator and kidney function resources. Our goal is to keep health-related calculations private, transparent, and easy to understand.
No Personal Health Data Collection in the Calculator
Our eGFR calculator works in your browser, so we do not ask for or store personal health details entered for kidney function estimates, including:
- Serum creatinine values
- Age information
- Sex/gender data
- Calculation results
Browser-Based eGFR Calculation and Local Processing
All eGFR calculations happen locally in your web browser. Your creatinine values, age, sex, and estimated kidney function results stay on your device instead of being sent to a server for processing.
No Registration Needed to Check Kidney Function
You can use our kidney function calculator without creating an account, submitting an email address, or sharing personal medical details. The core tool is available freely and directly in the browser.
Anonymous Website Analytics
We may use privacy-conscious analytics to understand how visitors use the website and which educational pages are most helpful. These reports are aggregated and do not include personal health information. Analytics may include:
- Page views and navigation patterns
- Browser type and device information
- Geographic region (country level)
- Referring websites
Essential Cookies and Site Functionality
We use only limited cookies or similar technologies needed for basic website functionality and performance. These are not intended to store sensitive medical data. You can manage cookies in your browser settings, although some features may work less smoothly.