Sense burnt 794 calories while I was asleep

[Nekoneko]

I have no idea how it did it. People go on about BMR but 794 still seems to much to burn doing nothing but sleeping at night. Any idea why it does it. All the settings are set to my info right.

Moderator Edit: Clarified subject

[Rufous44]

How long have you been sleeping?

[LZeeW]

Hello @Nekoneko and welcome to the Community.  Fitbit uses the Mifflin St. Jeor equation to estimate BMR.  There are calculators online and you can verify your BMR.  Most calculators will give you your daily BMR.  Fitbit resets at midnight, so you will need calculate calories per hour. Then you need to finish the calculation based on when you woke up.

[Nekoneko]

About 7 hours

[Clove6060]

I only burnt 506 since 12:00 a.m.

Gotta step it up 🤣

Like LZeeW said;

Fitbit devices combine your basal metabolic rate (BMR)—the rate at which you burn calories at rest to maintain vital body functions (including breathing, blood circulation, and heartbeat)—and your activity data to estimate your calories burned. If your device tracks heart rate, your heart-rate data is also included, especially to estimate calories burned during exercise. The number you see on your Fitbit device is your total calories burned for the day.

Your BMR is based on the physical data you entered in to your Fitbit account (height, weight, sex, and age) and accounts for at least half the calories you burn in a day. Because your body burns calories even if you’re asleep or not moving, you see calories burned on your device when you wake up and will notice this number increase throughout the day.

[LZeeW]

@Nekoneko   Here is a link to the Mifflin St. Jeor equation.  You need to do the math.