To be more accurate and specific here are the numbers you need to know;
Your body will burn 400 calories if you walk for one hour. This will occur if you walk with a typical speed of 4 miles per hour.
If you desire to be even more particular, you need to understand that in order to burn 100 calories you need to make 2,000 actions. That is around 1 mile of strolling. In fact, in order to lose 1 pound, you need to burn 3,500 calories.
The very best and healthiest way to lose weight and not have the yo-yo result, is to lose 1 pound in a week.
That implies that you have to burn 500 calories in a day, or determined in miles you need to stroll 5 miles daily.