Calculators

Calculates pressure as force applied per unit area (P = F/A).

Estimates an individual's risk of developing lung cancer based on smoking history and other factors.

Estimates expected peak expiratory flow rate based on age, height, and gender, used in asthma management.

Calculates the ratio of forced expiratory volume in 1 second (FEV1) to forced vital capacity (FVC) from spirometry, aiding lung disease diagnosis.

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

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.

Estimates the probability of losing a sock during laundry based on the number of socks washed and the number of washes.

Calculates your hat size based on your head circumference, providing results in international, American, and British sizing systems.

Calculates the compression ratio and the resulting pressure in pounds per square inch (PSI) of an engine, given the bore, stroke, head volume, and deck clearance.

Calculates the power generated by hydroelectric turbines based on head, flow rate, and efficiency.