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Can I recalibrate my steps distance on my Apple Watch?


iMore Question

The treadmills at my gym are all counting mileage differently from my Apple Watch now. If I walk 1 lap or .25 miles on treadmill my Apple Watch records only around .20 miles! This is making me walk around 6.5 mikes to get credit for 5 miles! Unless the treadmills are all off suddenly! Any and all suggestions are welcome...


iPhone 7, iPad Pro & Apple Watch Champion
Sep 26, 2012
Honestly, I don't pay attention to that. I have the opposite problem bc my strides are short, so my AW records more distance than my treadmill. I usually base my runs off the treadmill stats.


Active member
Sep 2, 2013
Check out this help page from the Apple website.


Whenever you walk or run outside using the above steps, your Apple Watch continues to calibrate the accelerometer by learning your stride length at different speeds. Calibration can also improve the accuracy of your calorie calculations in the Workout app, and the calorie, distance, Move, and Exercise calculations in the Activity app.

Reset your calibration data

If you want to reset your calibration data, open the Apple Watch app on your iPhone. Tap the My Watch tab, then tap Privacy > Motion & Fitness > Reset Calibration Data.


New member
Jan 9, 2017
Thanks for the suggestion on how to recalibrate my Apple Watch! That improved things on the treadmill a lot! Now it's only off .05 per mile rather than .20 per mile! I hope to tweak it some more for better accuracy!
I live by my AW! :)