eGFR GFR Calculator

eGFR Calculator A straightforward calculation tool that estimates glomerular filtration rate using well‑known, peer‑reviewed formulas. Suitable for reference and educational purposes. Supported Formulas： Adult 2021 CKD‑EPI (race‑free) 2009 CKD‑EPI (classic) Cystatin C‑based equations Pediatric Schwartz 2009 CKiD U25 series (creatinine, cystatin C, combined) Key Features： Instant calculation from your entered values Multiple unit systems supported Optional history save (stored locally; cloud sync can be enabled) 13 languages Important Disclaimer： This app is for educational and reference use only. Results are derived from published formulas and are not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for medical decisions. Subscription： Premium features (e.g., additional unit conversions, ad‑free experience) are offered via auto‑renewable subscriptions. Subscriptions automatically renew unless turned off at least 24 hours before the end of the current period. Manage subscriptions in your Account Settings after purchase. Full subscription terms: https://koo8chun.github.io/ccrapp/terms-of-service.html Privacy Policy: https://koo8chun.github.io/ccrapp/privacy-policy.html Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/