Energy consumed by weight of gear on a multiday hike

  • #1
freeelectron
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TL;DR Summary
Trying to estimate the amount of extra food eaten per unit of gear weight on a long hiking trip
I'm trying to figure out how many extra kcal I would burn on a 600km hike with a 30,000m (30km) positive gain for every additional 100g (or 1kg, whatever) of gear in my backpack.

It would obviously be a quite rough approximation, as there are significant variables such as the efficiency of a human body which must be around 20% and the fact that the weight is not only lifted vertically but also swinging around.

Any idea of a calculation that wouldn't be too wrong?

Thanks
 
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  • #2
  • #3
Thanks

It looks like every additional kg on a 6h hiking day (3h going up, plus some energy for the flat parts and downhills) with a 10% grade would add ~200 kcal, which doesn't sound totally off, but I expected more.

That's another interesting calculator
https://www.outsideonline.com/outdo...acking/ultimate-backpacking-calorie-estimator

So, if the trip lasts about 24 days, every additional kg of gear would potentially require 4800 additional kcal
 
  • #4
It also depends whether you want to lose weight on your hike.
 
  • #6
freeelectron said:
It looks like every additional kg on a 6h hiking day (3h going up, plus some energy for the flat parts and downhills) with a 10% grade would add ~200 kcal,
Just for the log: simply by a wrong packaging or an inconvenient shoe you'll be off to the calculation by lot.
Not really an issue for a short hike but you also mentioned 24 days, and that makes safety margins a really tricky problem...
 
Last edited:

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