It calculates your stride length based on an average for your height/gender. You can set it yourself manually if you want. I can't remember the details of how to do it as I've never bothered.
Yes, entering your stride length is extremelly simple to do on the Fitbit website. Log in, go to your "dashboard", then hit the icon that looks like a cog wheel in the upper right and go to your "settings". That is where you enter stride length, and other relevant information.
I computed mine by walking a measured distance on the indoor track at my gym, and then dividing the distance by the number of steps. Pretty simple.
1. I'd prefer a more traditional watch band clasp rather than the clasp used with the fitbit wrist band. I find it sometime stubborn to get latched solidly.
2. It does not seem to give me as much step credits for running versus walking. Am I thinking about this wrong? Should'nt I get the same number of steps regardless of running versus walking?
3. It does not give me floor credits for using the incline on my treadmill. I wish it would but it does not recognize the incline.
Love my fitbit, but haven't been doing a great deal of walking lately. I've been riding my bike 12 to 16 miles a day. It does not keep accurate track of the riding.
Thanks. I had not been to the fitbit website before. That shows me a bunch more info above what you can see on the mobile app alone. Nice. It not only has a stride length entry. It also has a running stride length entry. It will be interesting to see the effect that has on my step counter.