BMR Calculator
function Calculate() {
var gender = document.getElementById("gender").value; var weight = document.getElementById("weight").value; var height = document.getElementById("height").value; var age = document.getElementById("age").value; var exercise = document.getElementById("exercise").value;
if(gender=="male") { val1 = 13.7 * weight; val2 = 5 * height; val3 = 6.8 * age;
result = 66 + val1 + val2 - val3;
cals = result * exercise;
} else if (gender=="female") { val1 = 9.6 * weight; val2 = 1.8 * height; val3 = 4.7 * age;
result = 655 + val1 + val2 - val3;
cals = result * exercise;
}
document.write ('Your Basal Metabolic Rate (BMR) is the number of calories you would burn if you stayed in bed all day.
');
document.write ('This is the amount of calories you would burn (per day): ' + result.toFixed(2) + '
');
document.write ('This is the amount of calories you need to maintain your weight( per day) ' + cals.toFixed(2) + '
');
}
function check(x) { document.getElementById("exercise").value=x; }