Is walking 3 miles a day good for you?
3 miles is 4.8 km. As a daily walk, it is a solid habit that fits most days. Here is what it means in steps, time and calories, and what the research says about walking that much.
The short answer
Yes, for most adults. Three miles is about 6,300 to 7,500 steps, depending on your height, and that lands right on the range where the largest step studies find most of the benefit: around 7,000 steps a day. Walked briskly every day, it is about an hour a day, comfortably more than the 150 minutes a week the US guidelines ask for.
3 miles in steps, time and calories
Steps depend on your stride, which depends mostly on height:
| Height | Steps in 3 miles |
|---|---|
| 155 cm (5 ft 1 in) | about 7,500 |
| 165 cm (5 ft 5 in) | about 7,100 |
| 175 cm (5 ft 9 in) | about 6,700 |
| 185 cm (6 ft 1 in) | about 6,300 |
Time depends on pace:
| Pace | Time for 3 miles |
|---|---|
| Easy, 4 km/h (2.5 mph) | 1 h 12 min |
| Average, 5 km/h (3.1 mph) | 58 min |
| Brisk, 6 km/h (3.7 mph) | 48 min |
Calories depend mostly on body weight. For an adult of average height at an average pace, counting all the energy used during the walk:
| Body weight | Calories for 3 miles |
|---|---|
| 55 kg (121 lb) | about 230 |
| 70 kg (154 lb) | about 290 |
| 85 kg (187 lb) | about 350 |
| 100 kg (220 lb) | about 410 |
These come from a model of walking energy built on height, weight and speed (Ludlow and Weyand, 2016), the same one behind our calories per mile page. Our walking calculator works it out for your own height, weight and pace.
What the research says about 3 miles a day
No study or guideline measures walking in miles. The big studies count steps, so the step figures above are how 3 miles connects to the evidence:
- 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, dementia, type 2 diabetes, depressive symptoms and falls. For early death, heart disease, dementia and falls, the curve flattened at around 5,000 to 7,000 steps.
- A 2022 meta-analysis (Paluch and colleagues, 15 studies, 47,471 adults) found the risk of dying 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.
Three miles a day sits right in that range. At 6,300 to 7,500 steps, it is close to the 7,000 steps the 2025 review used as its comparison point, and inside the 6,000 to 8,000 where the 2022 analysis found the benefit levelling off for adults 60 and over. For adults under 60, it is a little under the 8,000 to 10,000 where their curve flattened, and the rest of an ordinary day’s steps usually covers the gap: three miles of walks on top of normal life adds up to more than three miles of steps.
These studies follow people rather than assign them to walk, so they show a strong link, not proof that the steps alone made the difference.
If three miles feels easy, there is room above it. For deaths from heart disease and stroke, cancer deaths, type 2 diabetes and depressive symptoms, the 2025 review found more steps kept helping in a straight line. Our pages on 5 miles a day and 6 miles a day take it from there.
Does it count toward the exercise guidelines?
The US guidelines ask adults for at least 150 minutes a week of moderate activity. Walking counts as moderate when it is brisk: the CDC puts that at about 3 mph (4.8 km/h) or faster. At that pace, 3 miles takes about 1 h 0 min, so 3 miles a day of brisk walking is well over the weekly minimum. Easy strolling still adds steps, but it doesn’t count toward the 150 minutes.
Building up to it
If you walk much less than this now, you don’t need to start at three miles. The steepest part of the benefit curve is at the bottom: in both reviews, the first few thousand extra steps a day were worth the most. Add a mile, keep it for a couple of weeks, then add another.
A goal for every walk
Walking is easy to skip when it leads nowhere in particular. reTrek gives your walks a finish line: pick a famous route, like the Camino de Santiago or the Inca Trail, and every walk moves you further along it, with a short film about the place waiting at each milestone. You stop looking for a spare moment to walk and start walking to reach the next milestone.
At 3 miles a day, Lukla to Everest Base Camp takes about 12 days. Everest Base Camp is free. Get reTrek.