Calculators

Calculates the required medication dosage based on the desired dose and medication concentration.

Compares a child's weight to others of the same age and gender using growth charts.

Calculates the International Normalized Ratio (INR) for patients on warfarin anticoagulant therapy. This calculator uses the prothrombin time (PT) of the patient and the International Sensitivity Index (ISI) of the thromboplastin reagent used in the PT test.

Calculates the corrected calcium level based on the total serum calcium and albumin levels.

Calculates pack-years, a measure of the amount a person has smoked over time. It is calculated by multiplying the number of packs of cigarettes smoked per day by the number of years the person has smoked.

Estimates the risk of major bleeding for patients on anticoagulation for atrial fibrillation.

This calculator categorizes blood pressure readings based on systolic and diastolic pressure levels, identifying whether a reading falls into normal, elevated, or various hypertension stages.

Calculates the ratio of waist circumference to hip circumference, an indicator of abdominal fat and health risk.

Calculates the amount of sunscreen needed for a trip based on the number of people, days, and estimated sun exposure.

This calculator helps you estimate how long it will take for your hair to grow to a desired length, based on your current hair length and monthly growth rate.