All Calculators
Find the right medical calculator for your needs. Search by name, category, or keywords.
Built by EMTs, for EMTs
If these tools help you care for patients, your support helps keep them updated and free for everyone. All contributions go toward development and hosting — not corporate profit.
Calculate how long an oxygen tank will last based on tank size, pressure, and flow rate.
Determine appropriate i-gel supraglottic airway size based on patient height and estimated ideal weight.
IV Drip Rate Calculator
Calculate IV drip rates and medication dosages.
Assess and interpret vital signs against age-appropriate normal ranges with clinical alerts.
Rapid newborn assessment for delivery calls. Score Appearance, Pulse, Grimace, Activity, and Respirations.
Calculate Glasgow Coma Scale scores with automatic interpretation. Includes adult and pediatric scales.
BMI Calculator
Calculate Body Mass Index and interpret results.
Medication Dosage Calculator
Calculate medication dosages based on weight and protocols.