How many miles should you walk a day?
The short answer
There is no official number of miles. Neither the health guidelines nor the big studies measure walking in miles: guidelines count minutes of activity, and the research counts steps. Translated into miles for an adult of average height, the honest summary is this:
- The large step studies find the benefit levelling off somewhere between about 5,000 and 10,000 steps a day, depending on the health outcome and your age. The middle of that range, 7,000 to 8,000 steps, is about 3 to 3.5 miles of total walking, counting every step of the day, not only deliberate walks.
- The US guidelines ask for at least 150 minutes a week of moderate activity. As brisk walking, that is about 1.5 miles a day on five days, on top of whatever else the day holds.
Every mile figure on this page is our conversion of steps or minutes, not a number any study or guideline gives.
What the research measures, and what it does not
The best evidence on how much walking matters comes from studies that give people step counters and follow their health for years. Two large reviews pull those studies together:
- A 2025 review in The Lancet Public Health (Ding and colleagues) found that, compared with 2,000 steps a day, people taking 7,000 had a 47% lower risk of dying during the studies, and lower risks of heart disease and stroke, dementia, depressive symptoms, type 2 diabetes and falls. For early death, heart disease and stroke, dementia and falls, the curve flattened at around 5,000 to 7,000 steps. For deaths from heart disease and stroke, cancer deaths, type 2 diabetes and depressive symptoms, more steps kept helping in a straight line.
- A 2022 meta-analysis (Paluch and colleagues, 15 studies, 47,471 adults) found the risk of dying during the study levelled off at about 6,000 to 8,000 steps a day for adults 60 and over, and 8,000 to 10,000 for younger adults.
Two things keep these findings in proportion. First, they follow people rather than assign them to walk, so they show a strong link, not proof that the steps alone made the difference. Second, the reviews rate how sure they are: the 2025 review called its evidence moderate for most outcomes, low for some and very low for falls. These are the best numbers available, not exact thresholds.
In miles
For an adult of average height, about 1.7 m (5 ft 7 in), whose walking step is about 0.70 m:
| Steps a day | About the same as | What the research links to it |
|---|---|---|
| 5,000 | 2.2 miles (3.5 km) | Lower end of where several benefits start to flatten |
| 7,000 | 3.1 miles (4.9 km) | Where most of the benefit has arrived in the 2025 review |
| 8,000 | 3.5 miles (5.6 km) | Top of the plateau for over-60s in the 2022 analysis |
| 10,000 | 4.4 miles (7.0 km) | Top of the plateau for under-60s in the 2022 analysis |
These are totals for the whole day, and the ordinary steps of a day count toward them. Taller people cover more ground with the same steps and shorter people less, so for you the miles may differ a little: how many steps in a mile has the figure for your height.
By age
The 2022 analysis is the clearest on age. In miles, for an adult of average height:
- Under 60: the benefit levelled off at about 8,000 to 10,000 steps, roughly 3.5 to 4.4 miles a day.
- 60 and over: it levelled off sooner, at about 6,000 to 8,000 steps, roughly 2.6 to 3.5 miles a day.
How many steps a day by age has the full picture, including children.
In minutes, from the guidelines
The US Physical Activity Guidelines ask adults for at least 150 minutes, and up to 300, of moderate activity a week, and say that going beyond 300 minutes brings additional benefits. Brisk walking at about 3 miles an hour counts as moderate activity, so:
- 150 minutes a week is about 7.5 brisk miles a week, or 1.5 miles on five days.
- 300 minutes a week is about 15 brisk miles a week, or 3 miles on five days.
These minutes are activity on top of ordinary daily movement, so they are not the same thing as a total step count. Someone who takes a brisk 1.5-mile walk on a day that already includes 4,000 to 5,000 steps of normal life ends up near the 7,000 to 8,000 total the step studies point to.
Is more always better?
Partly. For some outcomes in the 2025 review, including type 2 diabetes and depressive symptoms, more steps kept helping in a straight line, and the guidelines say activity beyond 300 minutes a week brings additional benefits. For early death, the curves in both reviews flatten, so extra miles beyond the plateau bring smaller gains there.
If you walk very little now
Start where you are. The US guidelines put it plainly: some physical activity is better than none, and adults who sit less and do any amount of moderate-to-vigorous activity gain some health benefits. In the step studies, the biggest differences were between the least active people and those just a little more active. An extra half mile a day is a real change if your starting point is low.
For weight loss specifically, the evidence is different, and how many steps a day to lose weight covers it.
Your miles, counted toward somewhere
Whatever your number, the hard part is the same: walking it most days, for years. reTrek turns your daily steps into distance along a real route, with a short film about the place waiting at each milestone and your progress on the map every evening. Three miles a day carries you from Lukla to Everest Base Camp in about 12 days. Everest Base Camp is free. Start walking it.