The number of calories burned walking a mile depends primarily on your body weight and walking pace. Here are some general estimates:

• A person weighing about 150 pounds burns roughly 100 calories per mile at a mild pace (around 2.5 mph)

• A 120-pound person burns approximately 85 calories per mile at the same pace

• A 160-pound person burns about 85 calories walking 1 mile at a moderate pace (2.8 to 3.2 mph)

• A 180-pound person typically burns around 100 calories per mile

• Heavier individuals burn more calories; for example, a 200-pound person walking 1 mile at 3 mph burns about 106 calories, while a 170-pound person burns about 90.6 calories at the same pace

Walking speed also influences calorie burn. For example, walking faster (3.5 to 4 mph) increases calories burned per mile due to higher intensity

. In summary, a useful rule of thumb is about 80 to 100 calories burned per mile for an average adult, with variations based on weight and pace. Heavier people and faster walking speeds result in more calories burned per mile