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BMR Calculator

Calculate your basal metabolic rate, based on your weight, height, and age.

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Moderate Exercise (3-5 days/week)

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Very Active (6-7 days/week)

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FAQ

Frequently Asked Questions

What is BMR?

You use energy no matter what you're doing, even when sleeping. Your basal metabolic rate (BMR), is the number of calories you'd burn if you stayed in bed all day.

What are the limitations of the BMR formula?

The BMR formula uses the variables of weight, height, and age to calculate the basal metabolic rate (BMR). This is more accurate than calculating calorie needs based on body weight alone. The only factor it omits is lean body mass and thus the ratio of muscle-to-fat a body has. Leaner bodies need more calories than less leaner ones. Therefore, this equation will be very accurate in all but the very muscular (will underestimate calorie needs) and the very fat (will over-estimate calorie needs).

How to change your BMR?

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.

What is harris benedict equation?

Harris benedict equation is a formula that uses your BMR and then applies an activity factor to determine your total daily energy expenditure (calories).

What are my calorie needs to gain weight?

If you want to gain body weight, you need to consume more calories than you burn. One pound of body weight is roughly equivalent to 3,500 calories, so eating an extra 500 calories per day will cause you to gain one pound a week.

What are my calorie needs to lose weight?

There are approximately 3,500 calories in a pound of stored body fat. So, if you create a 3,500-calorie deficit through diet, exercise or a combination of both, you will lose one pound of body weight. On average 75% of this is fat, and 25% is lean tissue. A useful guideline for lowering your calorie intake is to reduce your daily calories by 500.