The number of calories burned walking a mile varies mainly based on your weight and walking pace. Here are some general estimates:

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

• Someone weighing 120 pounds burns roughly 65 to 85 calories per mile at a moderate pace (around 2.5 to 3 mph)

• A 160-pound person walking a mile at a moderate pace burns about 85 calories

• Heavier individuals burn more calories; for example, a 200-pound person walking at 3 mph burns about 110-115 calories per mile

• Walking speed also affects calorie burn: a brisk pace (4 mph) can increase calories burned to about 95-100 calories per mile for a 150-pound person, and very brisk walking (5 mph) can burn 115-120 calories per mile

In summary, on average, walking one mile burns approximately 80 to 100 calories, with the exact number depending on your weight and how fast you walk