The Renal Function Calculator is intended solely for use by licensed healthcare professionals as a verification support tool. It does not replace independent clinical judgment, current prescribing information, institutional protocol, or pharmacy consultation.
Renal Function Calculator
References
Cockcroft DW, Gault MH. Prediction of creatinine clearance from serum creatinine. Nephron. 1976;16(1):31-41. (Cockcroft-Gault CrCl equation)
Devine BJ. Gentamicin therapy. Drug Intell Clin Pharm. 1974;8:650-655. (Ideal body weight formula)
Adjusted body weight (IBW + 0.4 × [actual − IBW]) — conventional dosing-weight correction factor for actual weight >120% of IBW, as used in aminoglycoside/vancomycin dosing literature (e.g. Bauer LA, et al. Am J Hosp Pharm. 1983;40(8):1352-1357).
Du Bois D, Du Bois EF. A formula to estimate the approximate surface area if height and weight be known. Arch Intern Med. 1916;17:863-871. (BSA — DuBois formula)
Mosteller RD. Simplified calculation of body-surface area. N Engl J Med. 1987;317:1098. (BSA — Mosteller formula)
Inker LA, Eneanya ND, Coresh J, et al. New Creatinine- and Cystatin C-Based Equations to Estimate GFR without Race. N Engl J Med. 2021;385:1737-1749. (CKD-EPI 2021 race-free eGFR equation)
Kidney Disease: Improving Global Outcomes (KDIGO) CKD Work Group. KDIGO 2024 Clinical Practice Guideline for the Evaluation and Management of Chronic Kidney Disease. Kidney Int. 2024;105(4S):S117-S314. (GFR category classification, unchanged from the superseded KDIGO 2012 guideline; also Practice Points 4.2.2 and 4.2.4, Section 4.2 "Dose adjustments by level of GFR," p.S249 — basis for preferring eGFR over CrCl for most drug dosing and for the nonindexed eGFR value below)