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10,000 steps come to roughly 7 to 8 kilometres of walking: about 7.5 km — around 4.7 miles — if your stride is close to 0.75 metres, the average for an adult. The drawing above shows that 7.5 km radius as a circle centred on London: drag the map to your own city to see how far you would get walking in a straight line from your front door.
The maths is simple: with an average step of 0.7 to 0.8 metres, a kilometre takes between 1,300 and 1,400 steps (a mile is roughly 2,000–2,250). So 10,000 steps land around 7–8 km depending on your height and pace — taller, faster walkers take longer strides and therefore fewer steps per kilometre.
It may surprise you: the 10,000-steps target did not come from a medical study, but from a marketing campaign. In 1965, shortly after the 1964 Tokyo Olympics, the Japanese company Yamasa launched one of the first pocket pedometers and called it "Manpo-kei" (万歩計), which literally means "10,000-steps meter". The story goes that they picked the number partly because the Japanese character for "10,000" (万) looks a little like a walking person, and partly because a round figure is easy to remember and to sell. The round goal stuck, and today watches and phones the world over ship with it — even though there was no science behind it to begin with.
The good news is that you don't have to reach 10,000 to get almost all of the benefit. The largest review to date, published in The Lancet Public Health in 2025 (a meta-analysis of 57 studies), found that walking about 7,000 steps a day is linked to a 47% lower risk of dying early compared with 2,000, along with lower risk of cardiovascular disease, type 2 diabetes, dementia and depression. The benefit rises quickly up to 5,000–7,000 steps and then flattens out: each extra 1,000 steps still helps, but less and less, up to about 12,000. In other words, 10,000 is a great goal if you hit it, but 7,000 is already an excellent, far more realistic target for most people.
At a normal walking pace (about 5 km/h, or roughly 3 mph), those 7.5 km take approximately 1 hour and a half; at a gentler pace it can stretch to 1 hour 40 minutes. You don't have to do them in one go — they add up over the day, from the commute to the shops to walking the dog. As for energy, 10,000 steps burn on the order of 300 to 500 kcal, depending on your weight and pace.
Click any distance to see it drawn to scale above, centred on London:
| Steps | Approximate distance |
|---|---|
| 1,000 steps | 0.75 km (~0.47 mi) |
| 2,500 steps | 1.9 km (~1.2 mi) |
| 5,000 steps | 3.75 km (~2.3 mi) |
| 7,000 steps | 5.25 km (~3.3 mi) |
| 10,000 steps | 7.5 km (~4.7 mi) |
These are straight-line distances from the centre: they give you a feel for the magnitude, not the real route you'd follow along streets. Change the number in the distances tool to try your own.
Want to keep playing with distances? See how long a marathon is or open the distances tool and draw your own. And if areas are more your thing, there is the Hectareometer.