Could an app allow to calibrate Altimeter using Sea Level Pressure?

Former Member
Former Member
Hi there,

Maybe an app could do that?
(start the app, enter sea level pressure, that's it: the altimeter is calibrated!!!)

Would an app be able to set the current elevation in a Fenix 3 watch? (Equivalent to manual altimeter calibration)

This is about a new feature lacking in your Fenix 3 watches and +.

IT SHOULD be implemented in Fenix 3 watches and + because:
-super useful!
-super easy to develop for Garmin!
-will work on all Altimeter-Baro watches!

To me it is the single most annoying detail missing.

I currently use the AirPressure widget (by thebigbadwolf_1)(along with excel) to estimate my altitude from the "sea pressure I get from the Weather station". What I do is 1-Get the SeaP from Weather Info; 2-Get the CurrentAtmP from the AirPressure widget; 3-Calculate the Elevation in Excel; 4-Calibrate Altimeter on the watch. I would love to be able to calibrate my altimeter directly using the "sea pressure I get from the Weather station" (no Excel!!!). The formula is: Elevation = =(288.15/(CurrentAtmP/SeaP)^-0.190266-288.15)/-0.0065 (P in Pascals and Elevation in meters) Thanks!

I use to do that all the time on the Core by Suunto...

I can send you my excel file, it has the formulas and explanations. The formula is good up to about 10,000m (more than Everest...)