The short answer: burning the 3,500 calories that the old rule assigns to a pound of fat takes roughly 75,000 to 160,000 extra steps, depending on your weight and pace. For a 70 kg (154 lb) person that is about 110,000 to 125,000 steps, or 11 to 12 days of 10,000 steps. But that is steps to burn energy, not steps to lose a pound, because the rule overestimates weight loss.
Steps to burn 3,500 extra calories
The numbers by body weight
These use the energy rating for walking in the Compendium of Physical Activities (3.5 METs at 3.0 mph, 4.3 METs at 3.5 mph) and count only the extra energy above what you'd burn sitting for the same time, since that's the part walking adds. They assume about 1,300 steps per kilometre, which varies with height and pace. It is our arithmetic.
| Body weight | Extra calories per 1,000 steps (3.0 mph) | Steps to burn 3,500 extra calories (3.0 mph) | Extra calories per 1,000 steps (3.5 mph) | Steps to burn 3,500 extra calories (3.5 mph) | Days at 10,000 steps a day |
|---|---|---|---|---|---|
| 55 kg (121 lb) | 22 | 159,000 | 25 | 140,000 | 14 to 16 days |
| 70 kg (154 lb) | 28 | 125,000 | 32 | 110,000 | 11 to 12 days |
| 85 kg (187 lb) | 34 | 103,000 | 39 | 91,000 | 9 to 10 days |
| 100 kg (220 lb) | 40 | 87,000 | 45 | 77,000 | 8 to 9 days |
Heavier people need fewer steps because it costs more energy to move more mass. The earlier version of this page gave 70,000 to 90,000 steps in its introduction, about 100,000 in its table for 70 kg, and a calculator that produced a third figure. They didn't agree with each other, so we rebuilt them from one method. If you use a fitness tracker's calorie number instead, which includes the energy you'd burn anyway, you'll get a smaller step count for the same 3,500 calories, but that overstates what the walking added.
Why this isn't "steps to lose a pound"
The 3,500-calories-per-pound rule treats weight loss as simple subtraction. A 2011 analysis in The Lancet (Hall and colleagues) showed that it overestimates weight loss, because the body adapts as weight falls; their rule of thumb is that a sustained change of about 100 kJ (24 kcal) a day produces an eventual change of about 1 kg, with half of it taking about a year. In practice, a meta-analysis of pedometer-based walking programs with no diet change (Richardson and colleagues) found an average loss of about 1.3 kg over a median of 16 weeks. The fuller picture is in how many steps to lose weight and does walking help you lose weight.
For perspective, burning 3,500 extra calories a week through walking alone at 70 kg would take roughly 16,000 to 18,000 extra steps a day. That is why walking by itself is not an efficient route to fast weight loss.
What we removed
The earlier version said walking plus a 200 to 300 calorie cut gives 550 to 800 calories a day of deficit, enough for 1 to 1.5 pounds a week, and that adding a small diet change "cuts these timelines roughly in half." Those figures used a calorie burn for 10,000 steps that was higher than the numbers above, and they rest on the same 3,500 rule. What the evidence does support is that activity combined with moderate diet restriction does better than activity alone; the American College of Sports Medicine's 2009 position stand reached that conclusion.
Making the numbers feel doable
This part is opinion. A weekly total is easier to think about than a six-figure number. If you want to add steps, how to walk 10,000 steps has ways to fit them in, the 30-day walking challenge builds up gradually, and calories burned walking has the same method by distance. Faster walking helps less per mile than you'd expect; see power walking.
Sources
- Ainsworth BE, Haskell WL, Herrmann SD, et al. 2011 Compendium of Physical Activities: a second update of codes and MET values. Medicine & Science in Sports & Exercise. 2011;43(8):1575-1581. pacompendium.com
- Hall KD, Sacks G, Chandramohan D, et al. Quantification of the effect of energy imbalance on bodyweight. The Lancet. 2011;378(9793):826-837. sciencedirect.com
- Richardson CR, Newton TL, Abraham JJ, Sen A, Jimbo M, Swartz AM. A meta-analysis of pedometer-based walking interventions and weight loss. Annals of Family Medicine. 2008;6(1):69-77. PubMed
- Donnelly JE, Blair SN, Jakicic JM, et al. American College of Sports Medicine position stand. Appropriate physical activity intervention strategies for weight loss and prevention of weight regain for adults. Medicine & Science in Sports & Exercise. 2009;41(2):459-471. doi
Correction note: an earlier version of this page said it takes about 70,000 to 90,000 steps to burn the calories in a pound of fat, gave tables of daily steps and timelines to lose a pound a week, and said adding a small diet change halves the timelines. Its introduction, table and calculator gave different numbers from each other. We rebuilt them from one method, and the figures above are our own arithmetic from published MET values and an assumed 1,300 steps per kilometre, so they are approximations that vary with stride, pace and the individual. We checked the published figures against abstracts and summaries on October 2, 2026. This is general information, not medical advice.