Charge 6 calculating distance walked inaccurately

[K_ajith]

When I use the Charge 6 for my treadmill walk,it always shows less distance walked. How to fix it ? Or calibrate it ?

[KatherineNY]

@K_ajith Less distance compared to the counter on the treadmill monitor?  It's possible how you swing your arms or if you are stepping lightly.  That's my experience.  For example, when I walk the same lap around the park vs jog the same lap, my walks end up with less steps/miles vs when I jog. 

[DavidFitbit]

Hi @K_ajith and @KatherineNY Thanks for stopping by, I hope you're doing well.

Let me help you with the distance accuracy of your Charge 6.

In addition to what @KatherineNY says, your Charge 6 uses the formula below to calculate distance. Your stride length is determined by your height and sex.

Steps x Stride Length = Distance Traveled

You can update your stride length if you need to. For more information, see our help article How does my Fitbit device calculate my daily activity? below the section "Can I change my stride length in my Fitbit account?"