It depends on how much you weigh and how fast you walk. Below is an *estimate* of how long you’ll have to walk (at various paces) to burn 3500 calories, the number of calories in one pound of fat.

- If you weigh 150 lbs, you’ll have to walk for approximately 20 hours to lose 1 lb.
- If you weigh 200 lbs, you’ll have to walk for approximately 15 hours to lose 1 lb.
- If you weigh 250 lbs, you’ll have to walk for approximately 12 hours to lose 1 lb.
- If you weigh 300 lbs, you’ll have to walk for approximately 10 hours to lose 1 lb.
- If you weigh 350 lbs, you’ll have to walk for approximately 9 hours to lose 1 lb.
- If you weigh 400 lbs, you’ll have to walk for approximately 8 hours to lose 1 lb.

- If you weigh 150 lbs, you’ll have to walk for approximately 16 hours to lose 1 lb.
- If you weigh 200 lbs, you’ll have to walk for approximately 12 hours to lose 1 lb.
- If you weigh 250 lbs, you’ll have to walk for approximately 10 hours to lose 1 lb.
- If you weigh 300 lbs, you’ll have to walk for approximately 8 hours to lose 1 lb.
- If you weigh 350 lbs, you’ll have to walk for approximately 7 hours to lose 1 lb.
- If you weigh 400 lbs, you will have to walk approximately 6 hours to lose 1 lb.

- If you weigh 150 lbs, you’ll have to walk for approximately 15 hours to lose 1 lb.
- If you weigh 200 lbs, you’ll have to walk for approximately 11 hours to lose 1 lb.
- If you weigh 250 lbs, you’ll have to walk for approximately 9 hours to lose 1 lb.
- If you weigh 300 lbs, you’ll have to walk for approximately 7 hours to lose 1 lb.
- If you weigh 350 lbs, you’ll have to walk for approximately 6 hours to lose 1 lb.
- If you weigh 400 lbs, you’ll have to walk for approximately 6 hours to lose 1 lb.

- If you weigh 150 lbs, you’ll have to walk for approximately 13 hours to lose 1 lb.
- If you weigh 200 lbs, you’ll have to walk for approximately 10 hours to lose 1 lb.
- If you weigh 250 lbs, you’ll have to walk for approximately 9 hours to lose 1 lb.
- If you weigh 300 lbs, you’ll have to walk for approximately 6 hours to lose 1 lb.
- If you weigh 350 lbs, you’ll have to walk for approximately 5 hours to lose 1 lb.
- If you weigh 400 lbs, you’ll have to walk for approximately 5 hours to lose 1 lb.

Ainsworth BE, Haskell WL, Whitt MC, et al. Compendium of physical activities: an update of activity codes and MET intensities. Med. Sci. Sports Exerc., Vol. 32, No. 9, Suppl., pp. S498–S516, 2000. Calorie calculations from equation: (METs x 3.5 x body weight in kg)/200 = calories/minute

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