I don't really do stairs... that was part of the quote that I copy/pasted and is in quotation marks.
Take care running stairs. I hurt my knees doing that
"Running burns a large amount of calories in a short amount of time. According to Prohealth.com's Exercise and Activity Calculator, a 150-lb. person running at 6 mph (10-minute mile) burns approximately 1,022 calories in 90 minutes. Increasing speed burns more calories in a shorter period of time. The same person can burn 1,020 calories in 60 minutes running at 9 mph (6.5-minute mile). Running stairs burns 1,020 calories per hour."
Of course, this will vary from person to person, depending on weight, height, etc.
You're awfully thin for 6' tall....