Strava over-estimates Calories
Does anyone else notice that the calorie info on Strava is a huge overestimate from the amount of calories you actually burn? Sometimes the estimated calories burned on Strava after I upload my ride is 2 to even over 3 times what I actually burned. What algorithm is used and why is there such a discrepancy?
Today alone I did a ride where I only burned 1,500 kcal according to my Garmin computer (which is actually really about 800 additional calories burned over my basal rate.) Strava states I burned 3,100 kcal. My Garmin 810 with all of my personal info, HR data, VO2 Max, FTP, etc I know is much more accurate.
How could Strava possibly calculate anyone who rides for only 45 miles stayed in Z2 70% of the time, Z3 15%, and Z4 for only 1% could possibly burn over 3,000 calories? I know it is not accurate, but there are people who do depend on this as their only means of calculating calories burned. Without a HR monitor it exaggerates even more. It would have indicated that I burned well over 4,000 calories, when I actually burned less than 1,000.
BTW, when the ride is uploaded on GarminConnect, the calories info is the same as that on my bike computer.