All Health & Kidney Calculators
Access 30 free, evidence-based clinical calculators and wellness tools designed for patients, doctors, and healthcare professionals.
🫘 Kidney & Nephrology Calculators
ACR Calculator
Calculate Urine Albumin-to-Creatinine Ratio to screen for early kidney damage and microalbuminuria.
eGFR Calculator
Estimate kidney filtration rate using 2021 CKD-EPI formula without race adjustment.
CKD Staging Calculator
Determine Chronic Kidney Disease stage (G1-G5) based on KDIGO clinical criteria.
Creatinine Clearance (CrCl)
Calculate Cockcroft-Gault CrCl for renal medication dosing adjustment.
Urine Protein/Creatinine (UPCR)
Estimate 24-hour total urine protein excretion from a spot sample.
BUN / Creatinine Ratio
Differentiate pre-renal azotemia from intrinsic renal parenchymal injury.
FENa Calculator
Calculate Fractional Excretion of Sodium for acute oliguric renal failure evaluation.
FEUrea Calculator
Calculate Fractional Excretion of Urea for patients concurrently taking loop diuretics.
Anion Gap Calculator
Evaluate metabolic acidosis etiology and serum electrolyte balance.
Corrected Calcium
Adjust total serum calcium for hypoalbuminemia in chronic kidney disease.
Free Water Deficit
Estimate free water replacement volume required for hypernatremia correction.
Osmolar Gap Calculator
Compare measured vs calculated serum osmolality for toxic alcohol ingestions.
MELD Score Calculator
Assess Model for End-Stage Liver Disease & Hepatorenal Syndrome mortality.
Sodium Correction
Correct measured serum sodium levels for acute hyperglycemia.
Maintenance Fluid
Calculate hourly IV maintenance fluid rates using the 4-2-1 rule.
Renal Diet Protein
Calculate daily dietary protein intake limits tailored to CKD stage.
Renal Potassium & Phos
Estimate daily recommended potassium and phosphorus intake targets.
Dialysis Adequacy (Kt/V)
Measure single-pool hemodialysis urea clearance adequacy.
Kidney Stone Risk
Assess nephrolithiasis risk factors and daily fluid target recommendations.
BUN Normal Range
Interpret Blood Urea Nitrogen lab values across different age brackets.
⚖️ General Health & Wellness Calculators
BMI Calculator
Calculate Body Mass Index and weight category classification.
A1C to Blood Sugar
Convert Hemoglobin A1C percentage to estimated Average Glucose (eAG).
BP Category Calculator
Check AHA blood pressure category (Normal to Hypertensive Crisis).
Ideal Body Weight
Calculate ideal body weight using Devine, Robinson, and Miller formulas.
BMR & Calorie Calculator
Estimate Basal Metabolic Rate using Mifflin-St Jeor equation.
Water Intake Calculator
Estimate recommended daily water intake based on body weight and activity.
Body Fat Percentage
Estimate total body fat percentage using US Navy circumference method.
Pulse Pressure
Calculate pulse pressure and Mean Arterial Pressure (MAP).
Diabetes Risk Assessment
Assess type 2 diabetes risk based on ADA clinical criteria.
Heart Rate Zones
Calculate target cardiovascular training zones (Zone 1 to Zone 5).