Health calculators.
Built for understanding.
Five practical tools with transparent formulas, worked examples, and the context behind each result.
Anion Gap Calculator
Evaluate the difference between measured cations and anions.
Na − (Cl + HCO₃)
02Electrolytes
Corrected Calcium Calculator
Estimate total calcium adjusted for albumin concentration.
Ca + 0.8 × (4 − albumin)
03Kidney function
FENa Calculator
Calculate fractional excretion of sodium from paired samples.
(UNa × PCr) / (PNa × UCr) × 100
04Body measurements
Adjusted Body Weight Calculator
Compare actual, ideal, and adjusted body weight.
IBW + 0.4 × (actual − IBW)
05Body measurements
Lean Body Mass Calculator
Compare the Boer, James, and Hume estimates.
Three established estimation formulas
BEHIND ARIFLONE.COM
Built for clarity.
Made for understanding.
Clinical calculations shouldn't be harder to understand than they need to be.
Ariflone.com brings practical clinical calculators together in one accessible place, with transparent formulas, worked examples, and explanations that put results into context. No accounts, no unnecessary complexity.