Fitbit overestimating kcals burnt

[Staceyjayne198]

Hi there.

Had my fitbit for 2 years and used to do a 2 hour walk and that would roughly burn 500 or so kcals. Recently I have been doing 1 hour walks and it's saying 388 kcals burnt and another time it's 455.

When I Google my height and weight it says an hours walk is roughly 250... What's going on!!?? 

 

[JohnnyRow]

"Walk" is quite a broad range of intensity.  It could mean a leisurely Sunday stroll through the garden, or a competitive race walker.  Does the chart you googled break down the intensity or just call it "walk"?  Fitbit knows just how fast your heart was beating and how hard you were working.  Would you really prefer to go by some general chart that doesn't know anything about your walking intensity?

[Staceyjayne198]

I understand what your saying but both walks were at a leisurely pace... If I had been really power walking or marching then yes I wouldn't question it but it's the same route, pace and duration I take how can it be so different each time. 

[JohnnyRow]

A 17% difference between 388 and 455 cal.

I would look at the two workout summaries and compare the heart rate charts; the simplest comparison would be average heart rate, though average doesn't tell the whole story.  And I'm talking about workout summary under Exercise tile, not necessarily what you see from tapping the Zone Minutes.