How Does Fitbit Calculate Calories

How Does Fitbit Calculate Calories

Calculating calories is an important part of any fitness journey. But how does Fitbit determine calories? In this post, we’ll look at the science underlying Fitbit’s calorie monitoring and why it’s so precise. We’ll also go over some of the best practises for tracking your daily activities with Fitbit, as well as some of the features and tools available to help you meet your fitness goals. So keep reading to learn all you need to know about how Fitbit counts calories!

What is a fitbit?

How Does Fitbit Calculate Calories

A fitness tracker worn on the wrist is known as a fitbit. It monitors your activity level and heart rate and utilises this data to calculate how many calories you have burnt.

Is Fitbit accurate with calories?

Yes, Fitbit is calorie correct. It estimates how many calories you burn throughout the day using an algorithm that considers your height, weight, age, and gender.

How does a fitbit work?

A fitbit is a wearable gadget that monitors your fitness and activity levels. It tracks your movements with an accelerometer and can estimate how many calories you burn depending on your height, weight, and gender. Fitbits may also measure your sleep habits and assist you in setting goals and tracking your success.

What are the benefits of using a fitbit?

How Does Fitbit Calculate Calories

There are many benefits of using a fitbit, including: 

1. Getting an accurate estimate of the number of calories you burn in a day. 

2. Knowing how many steps you take and how much distance you travel each day. 

3. Motivating yourself to be more active by setting goals and seeing your progress over time. 

4. Tracking your sleep patterns and quality to help you get a better night’s sleep. 

5. monitoring your heart rate to see how hard you’re working during exercise and everyday activities.

How does fitbit calculate calories?

Fitbit monitors your basal metabolic rate (BMR)—the rate at which your body consumes calories at rest to sustain key functions—and an activity factor to compute the amount of calories you’ve expended.

When you first start using Fitbit, we ask you to provide some personal information about yourself, such as your weight, height, and age. We produce a pretty accurate estimate of your BMR using this information. Then we increase that figure by an activity factor that represents the intensity of your lifestyle and physical exercise. The greater your activity factor, the more active you are.

For example, if your BMR is 1,500 and your activity factor is 1.2 (sedentary lifestyle with modest exercise), we estimate you burn 1,800 calories per day ((1,500 x 1.2)). If you then walk 10 miles on Fitbit that day, we will add 200 calories to your total ((10 x 20) + 1,800).

How to use a fitbit to calculate calories

There are a few things you should know if you want to utilise your Fitbit to calculate calories. Fitbit first estimates the amount of calories burnt based on your height, weight, age, and gender. As a result, the calorie calculations may not be completely correct. They should, however, be close enough to give you an estimate of how many calories you’re burning.

To calculate calories with your Fitbit, first open the Fitbit app and pick the “Calories” option. You can view your current calorie target as well as how many calories you’ve expended so far today in this section. Click the “Obtain More” option to see more specific information about your calorie burn.

On the next page, you’ll see a graph of your daily calorie burn, as well as some extra information like how many steps you’ve taken and how long you’ve been active. Scroll down to locate the section under “How Does Fitbit Calculate Calories?” You may learn more about how the algorithm works and what criteria are utilised to predict calorie burn by visiting this page.

Get out there and start moving now that you know how to use your Fitbit to compute calories! When it comes to burning calories and accomplishing your fitness objectives, every little bit matters.

Why is Fitbit calories burned so high?

How Does Fitbit Calculate Calories

There are many reasons why Fitbit calories burned may be greater than real calories burnt. First, Fitbit estimates calories burnt using heart rate, which has been known to overstate calories expended during exercises (1). Fitbit also employs a proprietary algorithm to estimate calorie burn, which has been found to overstate calorie burn by up to 27%. (2). Finally, the Fitbit tracker may record more calories burnt as a result of its own metabolism.


Fitbit devices monitor your activity, heart rate, and other data throughout the day to compute calories burnt. This gives you a more precise view of how many calories you’ve burnt while also revealing which activities are more efficient calorie-burners. Whether you’re aiming to lose weight or simply remain active, understanding how Fitbit counts calories may help you stay motivated and on track.

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