How many calories can you burn walking at 3 mph for 40 minutes?

Answer 1

It depends on how heavy you are. It takes more energy to move a heavier mass across a given distance (or 2 miles, in your case) than it would to move a lighter mass across the same distance. If you weigh 160 lbs, the energy required to cover that distance is approximately 205 kcal. If you weigh 100 lbs however, the energy required to cover the same distance is 50 kcal. (Joules = (weight in kg x (distance in meters^2))/(time is seconds^2), conversion rate of 1 Joule = 0.000239 kilocalories). This does not include basal metabolic rate which is the energy your body needs to keep your brain thinking, your heart pumping, your lungs inhaling and exhaling, your digestive system running its course, synthesizing new cells, excreting wastes, etc. The amount of energy your body requires just to stay conscious is downright dramatic compared to that for a leisurely walk.

Answer 2

"Calorie burn from walking depends on several factors, including age, weight, sex, walking pace and difficulty of your walking course," says Alex Davis, co-creator of Ryan and Alex Duo Life. "Generally, 1 mile (or roughly 2,000 steps) walked equates to [burning] 80 to 100 calories." There are 3,500 calories in 1 pound. "This means to lose 1 pound, you'll need to walk roughly 35 miles or 70,000 steps. Over the course of a week, this means targeting 10,000 steps a day," says Davis. At this rate, you could lose 10 pounds in 10 weeks.

The more you weigh, the more calories you will burn. According to calculations by the American Council on Exercise, a 185-pound person walking at a brisk pace of 3.5 miles per hour will burn 318 calories in one hour, and a 155-pound person walking at 3.5 mph will burn 267 calories in an hour.

The faster you walk, the more calories you will burn, so pick up the pace to lose 10 pounds in a shorter amount of time.

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Answer 3

224 calories