O2 Calculator Companion

O2 Calculator Companion is a fast, clinical utility for oxygen therapy and respiratory care. It helps healthcare professionals estimate FiO2, plan oxygen cylinder duration, and assess oxygenation indices at the bedside. Built for speed and clarity, it minimizes manual math and supports quick, informed decisions in ICU, ED, prehospital, and ward settings. Core features - Oxygen delivery calculators: FiO2 estimation by device and flow, cylinder duration by tank size and flow - Oxygenation indices: P F ratio, A a gradient, CaO2 and alveolar gas equation for quick status checks - Smart presets and units: common devices and tank sizes, unit conversions, favorites and offline access Ideal for respiratory therapists, critical care teams, emergency clinicians, and paramedics. Keywords: oxygen calculator, FiO2 calculator, medical calculator, respiratory therapy app, ICU tool, clinical utility. This app is for professional support and education only and does not replace clinical judgment.