Free Kidney Health Tools
Interactive calculators, trackers, and reference tools: all based on medical guidelines from the NIH and National Kidney Foundation. Everything runs in your browser, so your data never leaves your device.
eGFR Calculator
Calculate your estimated glomerular filtration rate using the CKD-EPI 2021 equation. The gold standard for assessing kidney function.
Use This Tool →CKD Daily Protein Calculator
Calculate your personalized daily protein intake in grams based on body weight, CKD stage, and dialysis status using KDOQI guidelines.
Use This Tool →Lab Results Decoder
Enter or photograph your kidney lab values and get plain-English explanations with color-coded ratings for every number.
Use This Tool →Kidney Health Tracker
Log your kidney lab results over time and see trends with interactive charts. All data stays on your device.
Use This Tool →Kidney-Friendly Food Search
Search any food to check its potassium, phosphorus, and sodium levels with color-coded kidney safety ratings.
Use This Tool →Food Swap Comparison
Compare two foods side-by-side to check differences in potassium, phosphorus, sodium, and protein with CKD stage verdicts.
Use This Tool →Hidden Phosphorus Additive Scanner
Paste food ingredient labels to instantly detect inorganic phosphate additives and chemical preservatives with gut absorption rates.
Use This Tool →Kidney Diet Meal Planner
Get meal ideas filtered by your CKD stage with complete nutrient totals for potassium, phosphorus, and sodium.
Use This Tool →Medication Safety Checker
Look up any medication or supplement to check if it's safe for your kidneys. Find safer alternatives when needed.
Use This Tool →Kidney Symptom Checker
Answer simple questions about your symptoms and risk factors to learn if they could be kidney-related.
Use This Tool →CKD Stage Explainer
Interactive visual guide to the 5 stages of chronic kidney disease. Learn what each stage means and what to do.
Use This Tool →Kidney Stone Risk Calculator
Assess your kidney stone risk based on diet and lifestyle. Get personalized prevention tips based on your answers.
Use This Tool →Hydration Tracker
Track your daily water intake with kidney-specific hydration targets based on your weight and CKD stage.
Use This Tool →KFRE Calculator
Calculate your 2-year and 5-year risk of kidney failure using the validated Tangri equation. The clinical gold standard for CKD stages 3 to 5.
Use This Tool →BUN to Creatinine Calculator
Differentiate between temporary dehydration, pre-renal azotemia, and intrinsic kidney disease with instant clinical ratio guidance.
Use This Tool →Kidney Diet Grocery List Generator
Build a stage-specific grocery list organized by supermarket aisles. Check off safe foods and print a pocket shopping guide.
Use This Tool →Doctor Visit Prep Checklist
Prepare for your nephrologist appointment in minutes. Generate a customized 1-page printable visit sheet with stage-tailored clinical questions.
Use This Tool →eGFR Slope & Trajectory Tool
Calculate your annual rate of kidney function decline (eGFR slope). Identify rapid vs stable progression under KDIGO criteria with interactive chart projections.
Use This Tool →Renal Blood Pressure Target Evaluator
Evaluate your blood pressure against the 2021 KDIGO guideline. Determine personalized systolic targets (<120 vs <130), proteinuria protection, and renal drug classes.
Use This Tool →Potassium Leaching & Cooking Calculator
Calculate residual potassium in potatoes, root vegetables, and greens based on slicing thickness and cooking methods like double boiling.
Use This Tool →Sodium to Table Salt Converter
Convert milligrams of sodium into grams, teaspoons, and pinches of salt. Track your daily renal budget and decode hidden packaged additives.
Use This Tool →Oxalate Food Calculator & Calcium Pairing Tool
Search 100+ foods for oxalate content and calculate the exact dietary calcium needed to bind oxalates in the gut before kidney stones form.
Use This Tool →