The amount of walking needed to lose 20 pounds varies based on factors like your weight, walking pace, diet, and consistency in activity. On average, walking one mile burns about 100 calories. Specifically answering this question, to achieve a loss of 20 pounds through walking alone, you theoretically need to burn approximately 70,000 calories, since one pound of body weight equals about 3,500 calories. This means you would need to walk roughly 700 miles (10).
While 700 miles might sound like a long distance, you can break it down into smaller, manageable goals. For example, by walking a few miles each day, you’ll reach your target faster than you think. Walking is an excellent physical activity that, combined with some changes in diet and lifestyle, can help you achieve your goal in a healthy and pressure-free way.