The amount of walking you need to lose weight depends on your body weight, walking speed, and how much weight you want to lose. A 160-pound person walking at a brisk pace burns about 91 calories per mile, meaning they’d need to walk roughly 38 miles to burn off a single pound of fat (without changing their diet). That sounds like a lot, but spread across weeks, it adds up faster than most people expect.
Below you’ll find the charts and math to build a walking plan that fits your body and your goal.
Calories Burned Per Mile by Body Weight
Heavier bodies burn more calories covering the same distance. This chart shows approximate calories burned walking one mile at two different speeds.
- 120 lbs: 64 calories (moderate) / 68 calories (brisk)
- 140 lbs: 74 calories (moderate) / 80 calories (brisk)
- 160 lbs: 85 calories (moderate) / 91 calories (brisk)
- 180 lbs: 96 calories (moderate) / 102 calories (brisk)
- 200 lbs: 106 calories (moderate) / 114 calories (brisk)
- 220 lbs: 117 calories (moderate) / 125 calories (brisk)
- 250 lbs: 133 calories (moderate) / 142 calories (brisk)
- 275 lbs: 146 calories (moderate) / 156 calories (brisk)
- 300 lbs: 160 calories (moderate) / 171 calories (brisk)
“Moderate” means about 2.8 to 3.4 mph, a comfortable pace where you can hold a full conversation. “Brisk” is 3.5 to 3.9 mph, where talking takes a bit more effort. These numbers come from metabolic research using a standardized energy measurement called a MET value: moderate walking scores about 3.8 METs, while brisk walking scores 4.8.
Weekly Walking Targets for Weight Loss
A pound of body fat stores roughly 3,500 calories of energy. To lose one pound per week from walking alone (no dietary changes), you’d need to burn an extra 500 calories per day. For most people, that’s impractical through walking alone. A more realistic approach combines a modest calorie reduction from food with a consistent walking habit.
Here’s what different weekly walking volumes look like for a 180-pound person walking at a brisk pace (102 calories per mile):
- 10 miles/week (about 1.4 miles/day): Burns ~1,020 extra calories. Paired with cutting 250 calories/day from food, that’s close to 1 pound lost per week.
- 15 miles/week (about 2.1 miles/day): Burns ~1,530 extra calories. Enough for roughly half a pound per week from walking alone.
- 20 miles/week (about 2.9 miles/day): Burns ~2,040 extra calories. With a small dietary adjustment, this reliably produces 1 pound per week of loss.
For a 220-pound person, those same distances burn about 23% more calories per mile, so the targets are easier to hit. For a 140-pound person, the burn is lower per mile, so you’d need more distance or a faster pace to match the same deficit.
How Walking Speed Changes the Math
Speed matters more than most people realize. Walking faster doesn’t just get you done sooner; it burns significantly more energy per minute. The Compendium of Physical Activities assigns these intensity values to different walking speeds:
- 2.0 mph (slow stroll): 2.8 METs
- 3.0 mph (moderate): 3.8 METs
- 3.5 mph (brisk): 4.8 METs
- 4.5 mph (very brisk, nearly jogging): 7.0 METs
That means power walking at 4.5 mph burns 2.5 times the energy per minute compared to a slow 2.0 mph stroll. If you’re short on time, picking up your pace is the single most effective change you can make. A 30-minute brisk walk burns roughly the same calories as a 50-minute slow walk.
How Incline Multiplies Your Burn
Walking uphill or adding treadmill incline is another powerful lever. Research published in the National Library of Medicine found that walking at a 5% incline increased energy expenditure by 52% compared to flat ground. At a 10% incline, the increase was 113%, more than doubling the calorie burn for the same speed and distance.
In practical terms, a 180-pound person who normally burns 102 calories per brisk mile on flat ground would burn about 155 calories at a 5% grade and roughly 217 calories at a 10% grade. That means you could walk fewer miles and still hit the same weekly calorie target. Even a 2 to 3% incline, which feels manageable for most people, adds a meaningful boost without making the walk feel grueling.
Converting Steps to Miles
If you track steps on a phone or watch, you’ll want to know how your daily step count translates into distance. Your stride length (and therefore steps per mile) depends mostly on your height.
- 5’0″: ~2,514 steps per mile
- 5’3″: ~2,395 steps per mile
- 5’6″: ~2,286 steps per mile
- 5’9″: ~2,186 steps per mile
- 6’0″: ~2,095 steps per mile
- 6’3″: ~2,011 steps per mile
The often-cited “10,000 steps a day” goal works out to roughly 4 to 5 miles depending on your height. For a 180-pound person, that’s about 400 to 500 calories of extra burn per day at a brisk pace, which creates a meaningful calorie deficit over time.
Recommended Weekly Minutes
Federal physical activity guidelines recommend at least 150 minutes per week of moderate aerobic activity (like brisk walking) for general health. That’s about 30 minutes, five days a week. For weight loss specifically, the target is higher: 300 minutes per week or more of moderate activity. That works out to about 40 to 45 minutes of walking every day, or 60 minutes six days a week.
At a brisk 3.5 mph pace, 300 minutes of walking covers roughly 17 to 18 miles per week. For a 200-pound person, that burns about 2,000 extra calories weekly, enough to lose just over half a pound per week from exercise alone. Combined with moderate calorie reduction, this range consistently produces steady, sustainable weight loss of 1 to 1.5 pounds per week.
Putting Your Personal Plan Together
To build your own walking-for-weight-loss plan, you need three numbers: your weight (to find your per-mile burn from the chart above), your target weekly calorie deficit, and the pace you can realistically maintain.
Say you weigh 200 pounds and want to lose 1 pound per week. You need a 3,500-calorie weekly deficit. If you plan to cut 300 calories a day through food, that’s 2,100 from diet, leaving 1,400 to burn through walking. At a brisk pace, you burn 114 calories per mile, so you’d need about 12.3 miles per week, or roughly 1.75 miles a day.
If you weigh 160 pounds with the same goal and the same 300-calorie daily food reduction, you’d need about 15.4 miles per week (1,400 รท 91 calories per brisk mile), or just over 2.2 miles a day.
Start with a volume you can sustain. Most people do better building up gradually, adding half a mile per week, rather than jumping straight to high mileage. Walking is low-impact enough that your body adapts quickly, and consistency over months matters far more than intensity in any single week. One important caveat: as you lose weight, your per-mile calorie burn decreases, so you’ll periodically need to walk a bit farther, a bit faster, or add incline to maintain the same deficit.