BMI Calculator
Calculate your Body Mass Index from height and weight to assess weight category.
Estimate ideal body weight using the Devine formula (height-based).
Devine formula estimates ideal body weight from height (used historically for drug dosing). It does not account for frame or muscle mass.
Ideal body weight (Devine): 65.9 kg (145 lbs)
The Devine formula estimates ideal body weight from height and sex. It was developed for drug dosing, not as a universal health target. For men: 50 kg + 2.3 kg per inch over 5 feet; for women: 45.5 kg + 2.3 kg per inch over 5 feet. The result does not account for frame size, muscle mass, or body composition. Use it as a rough reference; for health or weight goals, consult a healthcare provider.
Calculate your Body Mass Index from height and weight to assess weight category.
Estimate body fat percentage using the US Navy method (measurements).
Estimate your Basal Metabolic Rate and Total Daily Energy Expenditure (daily calorie needs).
Get personalized daily calorie targets for maintenance, loss, or gain.
Estimate daily hydration needs by weight and activity level.
Find optimal bed and wake times based on 90-minute sleep cycles.