๐Ÿ  Home ๐Ÿงช Kidney Function ๐Ÿ’‰ Hemodialysis ๐Ÿงช Peritoneal Dialysis ๐Ÿ“‹ Acute Kidney Injury โšก Acid-Base ๐Ÿ’ง Fluid & Electrolytes ๐Ÿงฌ Nutrition ๐Ÿงช Mineral Metabolism ๐Ÿ“ General
Nephrology Clinical Calculators

๐Ÿฉบ Nephrology Clinical Calculators

Evidence-based tools for renal function assessment, dialysis management, and acid-base disorders

15 calculators โ€ข Updated 2026
15
Total Calculators
9
Categories
3
Most in Category
2026
KDIGO Guidelines
๐Ÿ“‚ Category: All Acid-Base Acute Kidney Injury Fluid & Electrolytes General Hemodialysis Kidney Function Mineral Metabolism Nutrition Peritoneal Dialysis
๐Ÿงช
eGFR Calculator (CKD-EPI 2021)
Kidney Function
Estimates glomerular filtration rate using serum creatinine. Race-free equation recommended by NKF.
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Kt/V Dialysis Adequacy
Hemodialysis
Calculates single-pool Kt/V using the Daugirdas formula. Target: โ‰ฅ 1.2 for adequate hemodialysis.
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Urea Reduction Ratio (URR)
Hemodialysis
Quick assessment of dialysis adequacy. Target: โ‰ฅ 65% for adequate hemodialysis.
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Kidney Failure Risk Equation (KFRE)
Kidney Function
Predicts 2-year and 5-year probability of requiring dialysis or transplant for CKD G3โ€“G5 patients.
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Cockcroft-Gault CrCl
Kidney Function
Calculates creatinine clearance for drug dosing adjustments in renal impairment.
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Body Surface Area (Du Bois)
General
Calculates BSA using the Du Bois formula. Used for indexing various renal parameters.
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Incremental Dialysis Prescribing
Hemodialysis
Tailors hemodialysis prescription based on residual kidney function (KRU) using the variable target model.
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Peritoneal Dialysis Adequacy (Kt/V)
Peritoneal Dialysis
Calculates total weekly Kt/V for CAPD/APD patients combining peritoneal clearance and residual kidney function.
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KDIGO AKI Criteria
Acute Kidney Injury
Stage acute kidney injury using KDIGO 2012 criteria based on serum creatinine changes and urine output.
๐Ÿงช
Fractional Excretion of Sodium (FENa)
Acute Kidney Injury
Differentiates between prerenal azotemia and acute tubular necrosis (ATN) using simultaneous urine and serum samples.
๐Ÿงช
Fractional Excretion of Urea (FEUrea)
Acute Kidney Injury
Differentiates prerenal azotemia from ATN. Especially useful when FENa is unreliable (e.g., patients on diuretics).
๐Ÿงช
Fractional Excretion of Phosphate (FEPO4)
Mineral Metabolism
Evaluates renal phosphate handling in CKD, hypophosphatemia, and tumor-induced osteomalacia.
๐Ÿงฌ
Normalized Protein Catabolic Rate (nPCR)
Nutrition
Assesses nutritional status and protein intake in dialysis patients. Target: โ‰ฅ 1.0 g/kg/day.
๐Ÿ’ง
Free Water Deficit
Fluid & Electrolytes
Calculates water deficit for correction of hypernatremia with TBW estimation and correction rate guidance.
โšก
Anion Gap & Delta-Delta
Acid-Base
Evaluates metabolic acidosis, identifies cause (MUDPILES), and detects mixed acid-base disorders.
โœ๏ธ Author: Ahmed Mohmad Rashyd Musleh Registered Staff Nurse