Clinical Calculators & Diagnostic Tools
Free, evidence-based medical calculators and laboratory reference tools for nephrologists, pathologists, clinicians, and health consumers. Built to official KDIGO, ADA, and CLSI standards.
Featured Clinical Tools
Interactive decision calculators and pathology reference utilities
eGFR Clinical Calculator (CKD-EPI 2021)
Calculate Estimated Glomerular Filtration Rate using the validated 2021 race-free equation. Instant KDIGO CKD G1–G5 staging and clinical recommendations.
Creatinine Clearance Calculator (Cockcroft-Gault)
Calculate renal clearance with automated Ideal Body Weight (IBW) and Adjusted Body Weight (ABW) for antimicrobial and DOAC dose titration.
Serum Anion Gap & Delta-Delta Ratio Calculator
Calculates serum anion gap, automated albumin correction, and delta-delta ratio for metabolic acidosis and DKA evaluation.
HbA1c to Estimated Average Glucose (eAG) Converter
Convert Glycated Hemoglobin percentage (DCCT) into estimated daily average blood glucose in mg/dL and mmol/L with diabetic control classification and 2-way CGM prediction.
LDL Cholesterol Calculator (Friedewald & Martin-Hopkins)
Computes calculated LDL-C, Martin-Hopkins adjustment, Non-HDL cholesterol, and atherogenic ratios from standard fasting lipid panels.
Mean Arterial Pressure (MAP & CPP) Calculator
Calculates Mean Arterial Pressure, Pulse Pressure, and Cerebral Perfusion Pressure (CPP) with heart-rate compensation for shock triage.
Corrected Calcium (Hypoalbuminemia) Calculator
Adjusts total serum calcium for albumin concentration to unmask true ionized calcium balance, pseudohypocalcemia, and ECG QTc risks.
Pediatric Weight-Based Drug Dosing Calculator
Computes exact weight-based liquid medication volumes (mL) for pediatric antibiotic and antipyretic suspensions with adult ceiling caps.
Kidney Function Panel (KFT Reference Analyzer)
Reference ranges and clinical thresholds for Creatinine, Blood Urea Nitrogen (BUN), Uric Acid, and serum electrolytes.
Complete Blood Count (CBC Differential Guide)
Reference ranges for RBC, Hemoglobin, Hematocrit, Platelets, MCV, MCH, and full leukocyte differential (Neutrophils, Lymphocytes).
Liver Function Panel (LFT Assessment Tool)
Clinical evaluation of SGOT/AST, SGPT/ALT, Alkaline Phosphatase (ALP), Total Bilirubin, and Serum Albumin with De Ritis ratios.
Lipid Profile & Cardiovascular Risk Ratios
Total Cholesterol, HDL, LDL, VLDL, and Triglycerides reference intervals with atherogenic index of plasma calculation.
All clinical tools, formulas, and reference ranges published on BioScienceDesk are mathematically verified against peer-reviewed guidelines (including KDIGO 2024, NKF-ASN 2021, and ADA Standards of Care). These tools are designed for medical educational and professional decision-support purposes and do not replace personalized bedside clinical judgment.