Support Center

Fitbit HelpWEBSITE & DASHBOARD › How does Fitbit know how many calories I...

How does Fitbit know how many calories I've burned?

Last updated: Mar 04, 2014 10:08AM
Your tracker and dashboard show an estimated number of calories burned based on your BMR (Basal Metabolic Rate), which we calculate using the height, weight, age, and gender information you provided us with when you set up your Fitbit account.

When you sync your tracker, Fitbit replaces your estimated calorie burn with your tracker's data. If you manually log activities, the calories burned by doing those will be taken into account as well. 

When you haven't synced your device or logged any activities, Fitbit tries to guess how many calories you have burned if you got out of bed, got dressed, went to your day job, came home, and did nothing much more than walk to your car.

Once you start logging activities, Fitbit stops estimating and uses the data you've provided instead. The more you wear your tracker, the more accurate your calorie burn data will be.

If that you find that your calorie burn is just as high or higher on days when you are less active, it may be because you have calorie estimation enabled. Calorie estimation is used when no activities are logged or data is synced.

To  disable calorie estimation:

  1. Log into your dashboard.
  2. Click the gear symbol in the upper right.
  3. Select Settings.
  4. Scroll down the page to Preferences.
  5. Change the Calorie Estimation setting to Disable.
Sorry about that.
Why wasn't this article helpful? (check all that apply)
Great!
Please take a moment to tell us why this article was helpful. (check all that apply)
Thanks. Your feedback helps us improve our help content.
Search Highlight Gray Button Hover Gray Sidebar Button Hover Box Bkd Hover Box Bkd Minus sign for expanded state Green checkmark Green checkmark bigger
fitbit-support@fitbit.com
https://d218iqt4mo6adh.cloudfront.net/
desk
Loading
seconds ago
a minute ago
minutes ago
an hour ago
hours ago
a day ago
days ago
about
Invalid characters found
/customer/en/portal/articles/autocomplete