The more you weigh, the more calories you burn. A 140-pound person who walks an hour a day at 3 mph burns 277 calories. Walking every day, that equates to about 2.4 pounds per month. A 220-pound person who walks an hour a day at 3 mph burns about 436 calories, which equates to 3.7 pounds per month, Oct.
13.While this may seem insignificant, 50 fewer calories per day equals 350 fewer calories burned per week.