Inspire does not track miles in an indoor fitness track

[BonnyGale]

I've been walking all summer either outside or at the mall and steps/miles have been on point.  I've started walking on an indoor fitness track where 12 laps = 1 mile, but my fitbit records a mile after 4 laps, giving me a 9 minute mile!!  Impossible!!  I need mileage tracking for virtual races.  I do have GPS on, is there some other way to track miles/steps in an indoor facility.

[JohnnyRow]

If you do not use phone's GPS, it will calculate distance as number of steps times stride length.  Fitbit sets a default stride length based on your physical measurements, but you can fine-tune that.  It should be close enough for virtual races, but since you do know exact distances, you could adjust stride length to get it very close after a few walks.

See:

How do I measure and adjust stride length for my Fitbit device?

GPS is unreliable indoors, depending on building.  It sounds like it did work at your mall but not at the gym.