Biochemistry

Kidney, liver, lipid, glucose and electrolyte calculators, plus quality control. 40 free tools.

• Corrected Calcium Calculator - Calcium adjusted for albumin.
• Anion Gap Calculator - Serum anion gap without potassium.
• Globulin Calculator - Globulin from total protein and albumin.
• Albumin/Globulin Ratio Calculator - A/G ratio.
• BUN/Creatinine Ratio Calculator - Ratio of urea nitrogen to creatinine.
• Estimated GFR Calculator - CKD-EPI 2021 creatinine equation (race-free).
• Creatinine Clearance Calculator - Cockcroft-Gault estimate.
• Corrected Sodium Calculator - Sodium corrected for hyperglycemia.
• Calculated Serum Osmolality Calculator - Estimated osmolality.
• LDL Cholesterol Calculator - Friedewald estimate.
• Non-HDL Cholesterol Calculator - Total minus HDL.
• Total Cholesterol/HDL Ratio Calculator - Atherogenic ratio.
• Estimated Average Glucose Calculator - eAG from HbA1c.
• Body Mass Index Calculator - BMI from weight and height.
• Osmolar Gap Calculator - Measured minus calculated serum osmolality.
• Delta Ratio (Delta Gap) Calculator - Anion gap and delta ratio for mixed acid-base disorders.
• Albumin-Corrected Anion Gap Calculator - Anion gap adjusted for low albumin.
• LDL Cholesterol (Sampson / NIH) Calculator - LDL-C by the Sampson equation, valid up to triglycerides of 800 mg/dL.
• Atherogenic Index of Plasma (AIP) Calculator - log10 of the triglyceride to HDL ratio.
• Transferrin Saturation Calculator - Serum iron as a percentage of total iron-binding capacity.
• HOMA-IR and HOMA-Beta Calculator - Insulin resistance and beta-cell function from fasting values.
• Fractional Excretion of Sodium (FENa) Calculator - Helps separate prerenal from intrinsic kidney injury.
• Fractional Excretion of Urea (FEUrea) Calculator - FEUrea, useful when diuretics make FENa unreliable.
• Urine Albumin-Creatinine Ratio (UACR) Calculator - Albuminuria category from a spot urine sample.
• Pediatric eGFR (Bedside Schwartz) Calculator - Estimated GFR for children from height and creatinine.
• Free Water Deficit Calculator - Water needed to correct high serum sodium.
• Calcium-Phosphate Product Calculator - Serum calcium multiplied by phosphate.
• Indirect Bilirubin Calculator - Unconjugated bilirubin from total and direct values.
• AST/ALT Ratio (De Ritis) Calculator - Ratio of AST to ALT.
• FIB-4 Index Calculator - Non-invasive liver fibrosis score.
• APRI Calculator - AST to platelet ratio index for liver fibrosis.
• MELD and MELD-Na Calculator - End-stage liver disease severity scores.
• Child-Pugh Score Calculator - Severity class of chronic liver disease.
• HbA1c Converter (% and mmol/mol) - Convert between NGSP percent and IFCC mmol/mol.
• Clinical Lab Unit Converter - Convert common analytes between conventional and SI units.
• Body Surface Area (BSA) Calculator - BSA by the Mosteller and DuBois formulas.
• C1V1 = C2V2 Dilution Calculator - Stock volume and diluent for a working solution.
• Molarity to Mass Calculator - Grams of solute for a molar solution.
• QC: CV% and Sigma Metric Calculator - Coefficient of variation and sigma score for an assay.
• Levey-Jennings Z-Score Calculator - How many SD a control result is from the mean.