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).

Clinical Oversight: Dr. N. Karthickeyan, MCh Urology — Senior Urologist & Renal Specialist
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Specialist Oversight

Dr. N. Karthickeyan, MCh Urology

Senior Urologist & Renal Specialist

Early diagnosis of kidney dysfunction protects your heart, blood vessels, and vital organs. Routine eGFR and hydration checks save kidneys.
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Clinical Basis

Hydration targets vary greatly between healthy individuals, kidney stone formers, and patients with compromised renal function. Standard baseline requirement is 30–35 ml/kg body weight, adjusted for climate humidity and activity. For kidney stone prevention, the goal is to produce at least 2.5 litres of clear urine daily.

Reference Guidelines

  • General Health: Maintain 2.5–3.2 Litres daily. Keep urine pale straw-coloured throughout the day.
  • Kidney Stone Prevention: Target 3.0–3.5+ Litres daily spread evenly. Drink a glass before bedtime to prevent overnight urine concentration.
  • CKD Non-Dialysis: Drink to satisfy thirst, typically 1.5–2.0 Litres unless edema or swelling is noted. Always verify with your physician.
  • Dialysis Patients: Strict fluid restriction applies (typically 500–1000 ml + 24-hr urine output). Do not exceed prescribed interdialytic allowance.

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