Kidney Health Hub
Free clinical calculators, evidence-based dietary guides, and expert advice on kidney stones and CKD - reviewed by a board-certified urologist with 11+ years of tertiary hospital experience.
Start With Your Problem
Interactive Clinical Tools
Urine Color Decoder
Read what your urine color is telling you.
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Hydration Calculator
Find your daily fluid target to prevent stones.
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Kidney Stone Passage Calculator
Estimate the odds your stone will pass on its own.
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Acute Stone Pain Triage
Decide whether your stone pain needs the ER now.
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Kidney Stone Composition Identifier
Identify your stone type from its features.
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Stone Directory: A to Z
Browse every stone type and its diet plan.
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Oxalate Food List
Look up the oxalate load in common foods.
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Calcium-Oxalate Meal Balancer
Balance calcium and oxalate across your meals.
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Kidney Stone Prevention Compliance
Check how well your habits prevent new stones.
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Kidney Stone Risk Profiler (ROKS)
Gauge your recurrence risk with the ROKS nomogram.
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24-Hour Urine Interpreter
Interpret your 24-hour urine collection results.
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Stone Surgery Selector
Compare ESWL, URS and PCNL for your stone.
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CKD Stage Calculator (eGFR)
Stage your kidney function from your eGFR.
Open Tool →Comprehensive Guides
Kidney Stones in Young Adults: It’s Not Just Dehydration
Flying With Kidney Stones: Is It Safe to Board Untreated?
Blood in Urine in Men Over 60: Automatically High-Risk
Low Oxalate Diet: What You Can Actually Eat (Food List)
High Oxalate Foods Chart: What to Cut, What to Keep
Uric Acid Stones: How to Dissolve Them Without Surgery
Shockwave Lithotripsy Candidacy: Are You a Good Fit?
Heat and Kidney Stone Recurrence: What Actually Raises Risk
Left Flank Pain vs Back Pain: How to Tell Them Apart
