The complete toolkit
Health & clinical calculators
Choose a formula. Check the units. Understand the limits.
01Electrolytes
Anion Gap Calculator
Evaluate the difference between measured cations and anions.
Na − (Cl + HCO₃)02ElectrolytesCorrected Calcium Calculator
Estimate total calcium adjusted for albumin concentration.
Ca + 0.8 × (4 − albumin)03Kidney functionFENa Calculator
Calculate fractional excretion of sodium from paired samples.
(UNa × PCr) / (PNa × UCr) × 10004Body measurementsAdjusted Body Weight Calculator
Compare actual, ideal, and adjusted body weight.
IBW + 0.4 × (actual − IBW)05Body measurementsLean Body Mass Calculator
Compare the Boer, James, and Hume estimates.
Three established estimation formulas