Clinical Health Tools

Evidence-Based Health Calculators

Validated clinical calculators for Kidney Function & Nephrology and Maternity & Obstetrics, curated by our senior specialists at Vignesh Hospital & Guna Fertility Centre.

Kidney Health & Nephrology Tools

Supervised by Dr. N. Karthickeyan, MS, DNB, MRCS, MCh Urology • Senior Urologist & Renal Specialist

Kidney & Nephrology CKD-EPI 2021 Clinical Formula

eGFR Kidney Function Calculator

Assess your kidney filtration rate and check for chronic kidney disease (CKD) stages using serum creatinine, age, and gender.

Lead: Dr. N. Karthickeyan, MCh Urology
Kidney & Nephrology Nephrology Hydration Guidelines

Daily Fluid & Hydration Calculator

Calculate your personalized daily water and fluid intake based on body weight, climate, and specific kidney conditions (stones vs CKD restriction).

Lead: Dr. N. Karthickeyan, MCh Urology
Kidney & Nephrology Urological Stone Recurrence Assessment

Kidney Stone Risk & Hydration Target

Assess your risk score for developing or recurring kidney stones and find out your custom fluid and dietary countermeasures.

Lead: Dr. N. Karthickeyan, MCh Urology

Maternity, Pregnancy & Fertility Tools

Supervised by Dr. Prema Gunasekaran, DGO & Dr. Aarthi, DNB, DGO, FRM • Guna Fertility Centre

Maternity & Obstetrics Naegele's Cycle-Adjusted Rule

Pregnancy Due Date (EDD) Calculator

Calculate your Estimated Date of Delivery (EDD), gestational age in weeks & days, current trimester, and key milestone scan dates.

Lead: Dr. Prema Gunasekaran & Dr. Aarthi

Need Personal Clinical Guidance?

These calculators provide evidence-based clinical estimates for educational awareness. If your results indicate elevated risk or you need personalized treatment, our senior urologists, nephrologists, and obstetricians at Vignesh Hospital are available for consultation.