Oakland Personal Trainers

Fitness Calculators

BMI (Body Mass Index) is a measurement of body fat based on height and weight that applies to both men and women between the ages of 18 and 65 years.

BMI can be used to indicate if you are overweight, obese, underweight or normal. A healthy BMI score is between 20 and 25. A score below 20 indicates that you may be underweight; a value above 25 indicates that you may be overweight.

You can calculate your BMI by using our BMI Calculator below, or by using the BMI Formula.

Please remember, however, that this is only one of many possible ways to assess your weight. If you have any concerns about your weight, please discuss them with your physician, who is in a position, unlike this BMI calculator, to address your specific individual situation.

Calculate your Body Mass Index(BMI)

Body Mass Index
 
BMI Classification
18.5 or less Underweight
18.5 to 24.99 Normal Weight
25 to 29.99 Overweight
30 to 34.99 Obesity (Class 1)
35 to 39.99 Obesity (Class 2)
40 or greater Morbid Obesity
You use energy no matter what you're doing, even when sleeping. The BMR Calculator will calculate your Basal Metabolic Rate (BMR); the number of calories you'd burn if you stayed in bed all day.

If you've noticed that every year, it becomes harder to eat whatever you want and stay slim, you've also learnt that your BMR decreases as you age. Likewise, depriving yourself of food in hopes of losing weight also decreases your BMR, a foil to your intentions. However, a regular routine of cardiovascular exercise can increase your BMR, improving your health and fitness when your body's ability to burn energy gradually slows down.

Calculate your Basal Metabolic Rate(BMR)

How many calories per day your body burns
This adult daily calories calculator gives an approximation of your basal metabolic rate - the number of calories per day your body burns.

If your goal is to lose weight by burning off excess body fat, aim to eat 500 fewer calories per day than your daily caloric needs, and maintain or increase your exercise activity. Do not go below 1200 calories per day unless you are on a medically supervised weight loss program or after consultation with your doctor.

Calories Per Day Calculator for Adults
Female
Male
Your height: feet
inches
Your weight:
pounds
Your age:
years
Activity level:
To maintain your current weight you'll need: calories per day
Note: these calculations are based on averages. Athletes may require a higher caloric intake to maintain their current weight.
This calorie calculator is intended for adults.