About 10,000 steps a day, on top of a calorie deficit. At 200 lb, 10,000 steps burn roughly 350–400 calories more than you'd burn sitting still, not the 500 you usually see quoted. Steps don't create fat loss. The deficit does. Steps make the deficit bigger and help keep it from shrinking while you diet.
I went from 285 lb to about 200, and I hold 8–10% body fat year-round. My system is 10,000 steps a day on top of four lifting days, and I track the count daily next to my bodyweight and macros. Here's the math behind that number, and what to do when it stops working.
How many calories do 10,000 steps actually burn?
At a normal pace, 10,000 steps burn about 1.75–2 net calories per pound of bodyweight. The word that matters is net. Gross calories are everything you burn during the walk. Net calories are the extra over what you'd have burned sitting on the couch for the same hour and a half. Only net counts toward your deficit, because your maintenance number already includes the couch.
The "10,000 steps = 500 calories" line you usually see is a gross number. The real extra burn is about 25–35% lower than gross.
Net calories per 10,000 steps at a moderate pace (about 3 mph, about 2,100 steps per mile):
- 150 lb: ~260–300 net (gross ~410)
- 200 lb: ~350–400 net (gross ~550)
- 250 lb: ~435–505 net (gross ~685)
- 285 lb: ~500–575 net (gross ~780)
Here's how I got those. The ACSM walking equation, from the American College of Sports Medicine's exercise-testing guidelines, puts the net cost of level walking at about 0.5 calories per kilogram per kilometer. That gives the low end of each range. The 2024 Compendium of Physical Activities lists level walking at 2.8–3.4 mph (code 17190) at 3.8 METs. Subtract 1 MET for the resting burn and you get the high end. Which end should you trust? A 2016 analysis by Ludlow and Weyand pulled 127 measured walking values from the research and found the ACSM equation underpredicted almost all of them. So the real number probably sits nearer the top.
The napkin version: net calories per 1,000 steps ≈ your bodyweight in pounds ÷ 5. At 200 lb, that's about 40. It lands at the top of each range, so treat it as a ceiling, not a promise. Pace, stride length and hills all move the real number.
That also answers the other question people search: how many steps does it take to burn 500 calories? At 200 lb, about 12,500–14,500 steps on top of what you already walk in a day.
Can you lose weight just by walking 10,000 steps a day?
Yes, but slowly, and only if your food stays the same. The best data on this comes from a 2008 meta-analysis by Richardson and colleagues in the Annals of Family Medicine: 9 pedometer walking studies, 307 people, a median of 16 weeks, and no diet program. The average loss was 1.27 kg, about 2.8 lb. The paper puts the average pace at 0.05 kg a week, roughly a pound every 9–10 weeks.
Some pages quote that 2.8 lb as a win. I read it the other way. That's what walking does when nobody tracks food.
Why so small? A 2007 review in JAMA by Bravata and colleagues found that in 8 randomized trials, people with pedometers added about 2,491 steps a day compared with controls. Having a step goal, such as 10,000 a day, was an important predictor of that increase. Across all 26 studies in the review, BMI went down by only 0.38. At 200 lb, 2,500 extra steps is worth about 85–100 net calories a day. One handful of chips erases that.
So walking works when it sits on top of a tracked deficit, not instead of one. If you're deciding between more steps and formal cardio, keep the steps. Here's why steps beat cardio for most people. And no, walking won't target your gut. Belly fat comes off as your total body fat drops, the same as everywhere else.
Why 10,000 steps and not 7,000?
Because 7,000 is a health number, and fat loss is a different job.
The "you only need 7,000" headlines are real research, but it measured something else. A 2025 meta-analysis by Ding and colleagues in The Lancet Public Health pulled 57 studies. For death, heart disease, dementia and falls, the benefit curves started to flatten around 5,000–7,000 steps. Compared with 2,000 steps a day, 7,000 was linked to a 47% lower risk of death from any cause and a 25% lower risk of developing cardiovascular disease. A 2022 Lancet Public Health analysis by Paluch and colleagues (15 cohorts, 47,471 adults) found the death-risk curve leveled off at 6,000–8,000 steps for adults 60 and over, and 8,000–10,000 for adults under 60. And Saint-Maurice and colleagues in JAMA (2020) found 8,000 steps a day was linked to about half the death risk of 4,000.
None of those studies measured fat loss. They measured who got sick and who died. Even the Ding paper says 10,000 is still a reasonable target for people who are more active.
When you diet, your body quietly burns less through movement. In the CALERIE calorie-restriction trials (Martin et al., 2011), people on calorie restriction generally burned less through daily activity, and that drop "reduced the energy deficit." The researchers' best guess was less fidgeting and more efficient muscles. Their activity monitors didn't consistently catch it.
That movement budget, called NEAT (non-exercise activity thermogenesis), is bigger than most people think. In a 2005 Science study, Levine and colleagues tracked the posture of 10 lean and 10 mildly obese people every half-second for 10 days. The obese group sat about 2 hours a day longer. If they'd moved like the lean group, they might have burned about 350 more calories a day. That's roughly what 10,000 steps burn at 200 lb. For scale, a pound of muscle burns about 6 calories a day. How much you move matters far more than how much muscle you carry.
So a fixed 10,000 floor is how you limit the leak. Your step count is the one part of NEAT you can actually see. Track it daily, and a quiet drop shows up as a number instead of a stalled scale three weeks later. That's why I've put it in a caption as "10k steps a day MINIMUM is mandatory." It's a floor, not a stretch goal. For context, the step index cited in a 2011 review by Tudor-Locke and colleagues calls anything under 5,000 a day "sedentary."
How many steps a day to lose 1 or 2 pounds a week?
You can't get there on steps alone. The food has to do most of the work.
The math: maintenance is about your bodyweight in pounds × 12, and a 500-calorie daily deficit is about 1 lb a week, since a pound of fat is roughly 3,500 calories. At 200 lb, that's 2,400 maintenance and 1,900 to lose a pound a week. Here's how to set the deficit itself.
To make that same 500-calorie deficit with walking alone, a 200 lb person needs about 12,500–14,500 extra steps a day. For 2 lb a week, it's 25,000+ extra steps. That isn't a plan. That's a second job.
The 500-calorie deficit, about 1 lb a week, is the default. How fast you can go depends on how lean you are. Above about 15% body fat, the ceiling is around 1% of your bodyweight a week. Below 15%, it's around 0.5%. At 200 lb, that's a ceiling of about 2 lb a week above 15% and 1 lb below it. A ceiling isn't a target. Two pounds a week at 200 lb means a 1,000-calorie daily gap, twice the default.
One more rule: don't eat back your step calories. The ×12 number is a starting estimate, not an exact budget. You correct it against your 7-day average bodyweight, and that average already reflects your steps. Add step calories on top and you count them twice.
What should you do when 10,000 steps stops working?
If your 7-day average weight is flat for 2 weeks, add 2,000 steps a day first. If it's still flat after 2 more weeks, drop 100–200 calories. Change one thing at a time so you know which one worked. That's the No-Guess Loop at work: track, review the trend, adjust one input.
Be honest about how small the step lever is. At 200 lb, 2,000 extra steps is about 70–80 net calories a day. That's a gentle nudge, a bit smaller than the smallest food cut of 100 calories. It's still the right first move. It doesn't make your plate smaller, and it doesn't tax your recovery the way HIIT does, so your lifting stays strong.
If both levers fail, the problem usually isn't the steps. Here's why the scale stalls even in a deficit, from water to tracking errors.
How do you hit 10,000 steps with a desk job?
Break it into chunks. At about 100 steps a minute, which is a brisk, moderate pace, a 30-minute walk is roughly 3,000 steps. So 10,000 is about 100 minutes of walking spread across the day, minus whatever you already get from normal life.
A few chunks add up fast. One 30-minute walk covers about a third. Short walks after meals are the easiest chunk to repeat; here's what a walk after eating actually does. The rest comes from the small stuff: calls on your feet, the far parking spot, the stairs.
If you've seen the 6-6-6 trend (a 60-minute walk at 6 a.m. or 6 p.m., with a 6-minute warm-up and cool-down), it's fine if you'll actually do it. There's nothing special about the sixes. It's just about 6,000+ steps in one block.
Whatever the chunks are, check the number every day. A step count you only guess at drifts down without you noticing, which is the same NEAT leak from earlier. If you want the daily minimum this fits into, I put it on a free one-screen scorecard: bodyweight, steps, macros and your workout, tracked every day.