# Calories Burned Taking the Stairs

I’m getting orders of magnitude discrepancy in ballparking this, based on:

According to the first, a 160 pound person burns nine calories walking up a flight of stairs. For ballparking purposes, I’m taking a flight as the two sets of stairs in between floors of a typical highrise building, ignoring the fact that this is typically greater for a commercial/office building compared to a residential building.

According to the second website:
(MET=9)x(3.5)x(160/2.2)/(200)*(10/60) = 1.9 calories

The first pair of brackets is a MET of 9 for stair climbing under a load. The 160/2.2 converts pounds to kilograms. The final pair of brackets converts the ball park of 10 seconds to climb a flight into minutes.

While I expect some differences in the estimate due to all sorts of ballparking, I don’t expect two orders of magnitude, especially since the second calculation is under load and should be more.

With such a large discrepancy, how does one vet the information online about this to arrive at somewhat plausible numbers?

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