Weight Loss Calculator + Installer + Source + User Interface

This software should be designed for informational and entertaining purposes only. The basic principle is that users enter their personal data, based on which they will receive the amount of calories they would have to eat in order to either keep their current weight, or lose some weight (depending on what they completed in the form). The whole application consists of a single form, with the following elements: [login to view URL] 1. Age (input field) 2. Gender (dropdown/radio) 3. Height (in feet & inches, or in centimeters). 4. Weight (in pounds or kilograms). 5. Daily Activity Level (dropdown): a. No sport / exercise. b. Light activity (sport 1-3 times per week). c. Moderate activity (sport 3-5 times per week) - default option. d. High activity (everyday exercise). e. Extreme activity (professional athlete). 6. How much weight do you wish to lose? (in pounds or kilograms) 7. How much time do you have? (in days) 8. Submit button [login to view URL] [login to view URL] How should the calculations be done? There is something called "Basal Metabolic Rate" (BMR). It's the number of calories your body needs just for its basic functions - to keep your heart beating, breathing, etc. This BMR index is individual for everyone but depends mostly on your gender, age, height, and weight. The result is obtained in 2 steps: 1. Calculate the BMR by applying the Harris-Benedict equations (revised by Roza and Shizgal in 1984): Men BMR = 88.362 + (13.397 x weight in kg) + (4.799 x height in cm) - (5.677 x age in years) Women BMR = 447.593 + (9.247 x weight in kg) + (3.098 x height in cm) - (4.330 x age in years) 2. Apply the Harris-Benedict Principle: The following table enables calculation of an individual's recommended daily calorie intake to maintain current weight. Little to no exercise Daily calories needed = BMR x 1.2 Light exercise (1–3 days per week) Daily calories needed = BMR x 1.375 Moderate exercise (3–5 days per week) Daily calories needed = BMR x 1.55 Heavy exercise (6–7 days per week) Daily calories needed = BMR x 1.725 Very heavy exercise (twice per day, extra heavy workouts) Daily calories needed = BMR x 1.9