Nephrology Calculators — Clinical Medicine
Support renal and acid-base workups with validated formulas. The GFR calculator estimates kidney function from creatinine, the anion gap and serum osmolality tools screen for metabolic acidosis and osmolar gaps, the FENa calculator distinguishes prerenal from intrinsic causes of AKI, and the calcium correction tool adjusts for albumin. Each cites its equation and is for educational reference only — confirm with labs and a clinician.
All Nephrology Calculators
Calculate serum anion gap and delta-delta to classify metabolic acidosis.
Correct serum calcium for albumin level to determine true calcium status.
Calculate FENa to differentiate prerenal from intrinsic renal failure.
Estimate glomerular filtration rate using CKD-EPI, MDRD, and Cockcroft-Gault equations.
Calculate serum osmolality from sodium, glucose, and BUN values.
About Nephrology Calculators
Support renal and acid-base workups with validated formulas. The GFR calculator estimates kidney function from creatinine, the anion gap and serum osmolality tools screen for metabolic acidosis and osmolar gaps, the FENa calculator distinguishes prerenal from intrinsic causes of AKI, and the calcium correction tool adjusts for albumin. Each cites its equation and is for educational reference only — confirm with labs and a clinician.
Whether you need to solve a one-time problem or verify your own calculations, these free tools cover the most common nephrology scenarios. All results are computed in your browser — no data is sent to any server.
What You Can Calculate
This section includes 5tools: Anion Gap Calculator (Metabolic Acidosis Workup), Calcium Correction Calculator, Fractional Excretion of Sodium Calculator, Gfr Calculator, Serum Osmolality Calculator. Each calculator is free to use with no signup required.