Medical & Health Calculators
Weight-based dosing, IV drip rates, body surface area, eGFR, due dates and medication schedules — arithmetic aids for professionals.
- Body Surface Area CalculatorCalculate body surface area in m² with the Mosteller and Du Bois formulas from height and weight — used for chemotherapy and drug dosing.
- Weight-Based Dosage CalculatorCalculate a weight-based dose: mg/kg × weight → mg per dose, mL per dose at your concentration and total daily dose, with a maximum-dose cap.
- Pregnancy Due Date CalculatorEstimate your due date from the first day of your last period (adjusted for cycle length) or conception date, plus trimester milestones.
- eGFR Calculator (CKD-EPI 2021)Estimate GFR from serum creatinine, age and sex with the 2021 CKD-EPI equation and see the CKD G-stage. Supports mg/dL and µmol/L.
- IV Drip Rate CalculatorCalculate IV infusion rates in mL/h for pumps and gtt/min for gravity sets from volume, time and drop factor (10, 15, 20 or 60 gtt/mL).
- Medication Schedule GeneratorCreate a printable medication schedule from the first dose time, interval and duration, with tick boxes for each dose given.