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3km difference in distance on a treadmill vs watch

Former Member over 4 years ago

Hi,

I have used my Garmin 45S a couple of times outside and 2-3 times indoor on the treadmill (intervals). Today i was going for a long run (7-8km) on the treadmill.

My watch told med that I had run 10km in 43minutes and the treadmill Said 7km.

What to do? My watch is way of!!

0 tmk2 over 4 years ago

Avoid looking at the watch while running, do not hold the rail. Any interruption to natural arm swing will confuse the watch.

0 Former Member over 4 years ago in reply to tmk2

Thank you! I also read that it can help to run 1mile, stop the run, save and then manually enter the distance from the treadmill. Do you know if this will help also? I am not sure how accurate that is because i dont know how many times my gym have calibrated the treadmill.

0 tmk2 over 4 years ago in reply to Former Member

run 1mile, stop the run, save and then manually enter the distance from the treadmill. Do you know if this will help also?

Yes, that can help, too.

I am not sure how accurate that is because i dont know how many times my gym have calibrated the treadmill.

Treadmills are notorious for inaccuracy. And I am not even sure if they can be calibrated.