Scale power meter values

I have four different power meters (two SRM, two power2max) and a Garmin 530.

The SRMs are calibrated manually (slope), so they show the same readings. But both the power2max units deviate from the SRM readings.

Is there a Garmin app or data field that allows scaling (adjusting) power values?

FlowState over 3 years ago

You could scale power meter values for display and even for recording with a Connect IQ data field, but you'll never be able to record such data as "native power", which means that it'll be ignored by Garmin Connect for power stats.

If you still want to do this, you could use my data field AppBuilder 5 and use a formula such as:

Power * 1.1

This example would scale your power by adding 10% to the measured value.

AppBuilder 5 can even record that scaled value. But it'll only ever show up as a 3rd-party field, due to Garmin limitations. Garmin has a way to mark a field as "nativeNum" data (meaning that a developer field should replace native data), but in practice, such "nativeNum" fields are ignored by most platforms. Garmin Connect will display "nativeNum" power as a 3rd-party field, but will never actually treat it the same as as native power.