Keep on rucking

Oliveciabatta

I have an hour lunchbreak exactly and most days do a 3 mile 300ft climb loop from my house to town and back. Takes about 50 min if I walk more like 30 min if I run but I don't always like to run as dont like sitting sweaty at my desk all afternoon and dont have time to change and shower. As I can't feasibly increase my time or distance or speed, I plan on going old school and start carrying a weighted rucksack, or rucking on my yomps to burn more calories but how do I log this, especially as my tracker will only pick up steps and speed which will probably drop a little each time I increase the load. How can I record this on mfp so I don't under or overestimate the calories burned?

sijomial

If you use this calculator you could put in the combined weight of yourself and your load.
https://exrx.net/Calculators/WalkRunMETs

You want the net calorie option if using MFP's method of eating back exercise calories.