Ten thousand steps is not the same distance for everyone. Put your height in and get your number, then map a walking route that long.
Based on a step length of 72 cm, estimated as 41.4% of your height. Your real step length changes with pace and terrain, so treat this as a close estimate rather than a measurement.
Example: 10,000 steps at a height of 170 cm is about 7.04 km, or 4.37 miles.
Your step length is the missing piece. Most converters assume an average and hand everyone the same answer, which is why two people who both hit 10,000 steps can be told they walked the same distance when one is 155 cm and the other is 195 cm.
The usual estimate puts walking step length at about 41.4% of your height. For someone 170 cm tall that is roughly 70 cm per step, so 10,000 steps comes out near 7 km. At 190 cm the same 10,000 steps covers closer to 7.9 km.
Step length is not fixed either. You take longer strides walking briskly on a flat pavement than you do wandering around a supermarket, so a day of errands and a deliberate walk of the same step count are not the same distance.
distance = steps x (height x 0.414)
For an adult of average height walking at a normal pace, a kilometre takes roughly 1,400 steps. A mile takes around 2,300. Those are the figures most guides quote, and they are a reasonable starting point if you have nothing else to go on.
They are also an average of people who are nothing like each other. Step length is the thing being averaged, and it varies by more than 20 centimetres across normal adult heights. Someone 155 cm tall needs closer to 1,560 steps to cover a kilometre. Someone 190 cm tall needs about 1,270. That is a difference of nearly 300 steps for exactly the same distance walked.
This is why the calculator above asks for your height before it answers. It is one extra number and it turns a population average into something that is actually about you.
The table below converts the step counts people search for most often, worked out for an adult of 170 cm. Both kilometres and miles are shown, because the same walk is the same walk whichever unit your phone is set to.
| Steps | Kilometres | Miles |
|---|---|---|
| 1,000 | 0.70 km | 0.44 mi |
| 2,000 | 1.41 km | 0.87 mi |
| 2,500 | 1.76 km | 1.09 mi |
| 5,000 | 3.52 km | 2.19 mi |
| 7,500 | 5.28 km | 3.28 mi |
| 10,000 | 7.04 km | 4.37 mi |
| 12,000 | 8.45 km | 5.25 mi |
| 15,000 | 10.56 km | 6.56 mi |
| 20,000 | 14.08 km | 8.75 mi |
Worked out for an adult of 170 cm, which gives a step length of about 70.4 cm. Taller walkers cover more ground per step, so use the calculator above for your own number.
If you would rather work the other way around, this is how many steps a kilometre and a mile take at each height. Find your row and you have a number you can use for the rest of the year without opening a calculator again.
| Height | Step length | Steps per km | Steps per mile |
|---|---|---|---|
| 150 cm (4'11") | 62.1 cm (24.4 in) | 1,610 | 2,592 |
| 155 cm (5'1") | 64.2 cm (25.3 in) | 1,558 | 2,508 |
| 160 cm (5'3") | 66.2 cm (26.1 in) | 1,510 | 2,430 |
| 165 cm (5'5") | 68.3 cm (26.9 in) | 1,464 | 2,356 |
| 170 cm (5'7") | 70.4 cm (27.7 in) | 1,421 | 2,287 |
| 175 cm (5'9") | 72.5 cm (28.5 in) | 1,380 | 2,221 |
| 180 cm (5'11") | 74.5 cm (29.3 in) | 1,342 | 2,160 |
| 185 cm (6'1") | 76.6 cm (30.2 in) | 1,306 | 2,101 |
| 190 cm (6'3") | 78.7 cm (31.0 in) | 1,271 | 2,046 |
| 195 cm (6'5") | 80.7 cm (31.8 in) | 1,239 | 1,993 |
| 200 cm (6'7") | 82.8 cm (32.6 in) | 1,208 | 1,944 |
Step length estimated as 41.4% of height. Feet and inches are rounded to the nearest inch.
Walking step length is usually estimated at about 41.4% of your height. The figure comes from gait research that puts it near 41.5% for men and 41.3% for women, a gap small enough that a single number covers both without pretending to a precision the method does not have.
Step length is the distance from the heel of one foot to the heel of the other. A stride is two steps, heel to heel on the same foot, so it is roughly double. Pedometers and phones count steps rather than strides, which is why every converter works in step length.
The ratio is an estimate rather than a measurement, and it assumes you are walking normally on level ground. If you want your real number, walk 20 steps in a straight line, measure the distance you covered, and divide by 20. Compare that to what the calculator gives you and use whichever you trust more.
Ten thousand steps is about 7 km, or 4.4 miles, for an adult of 170 cm. At a brisk pace that is a little over an hour and a quarter of actual walking, which is the part most people underestimate when they decide to hit the target on a weekday evening.
Here is what the common step counts work out to in distance, time and calories.
| Steps | Distance | Walking time | Calories (70 kg) |
|---|---|---|---|
| 2,500 | 1.76 km (1.09 mi) | 19 min | 95 kcal |
| 5,000 | 3.52 km (2.19 mi) | 38 min | 189 kcal |
| 7,500 | 5.28 km (3.28 mi) | 57 min | 284 kcal |
| 10,000 | 7.04 km (4.37 mi) | 1 h 15 min | 378 kcal |
| 15,000 | 10.56 km (6.56 mi) | 1 h 53 min | 567 kcal |
Assumes an adult of 170 cm walking at a brisk 5.6 km/h and weighing 70 kg. Calories are gross energy expenditure, the same basis fitness trackers use.
It came from marketing. In the run-up to the 1964 Tokyo Olympics a Japanese company sold a pedometer called the manpo-kei, which translates as ten thousand step meter. The number was chosen because it was memorable and because the character for 10,000 looks a little like a walking person. It was not the output of a clinical trial.
That does not make it a bad target. Research since has consistently found that more daily steps track with better health outcomes, with the sharpest gains coming in the move from very low counts up to around 7,000 or 8,000 a day. The benefit does not switch on at 10,000 and it does not stop there either.
Treat it as a round number worth aiming at rather than a line you have failed to cross at 9,400. If a 7,000 step day is a large improvement on your current average, that is the target that matters.
Your step length is not a fixed property of your body. Pace is the biggest lever: you take noticeably longer steps walking briskly along a clear pavement than you do drifting around a supermarket, so 10,000 steps of errands covers less ground than 10,000 steps of deliberate walking.
Terrain does the rest. Going uphill shortens your step, going downhill lengthens it, and loose ground, snow and sand shorten it further. Crowds, carrying a bag on one shoulder, holding a dog lead, pushing a pram and walking alongside someone with a different natural pace all pull the number down.
Age matters too, gradually. Step length tends to shorten over the decades, which is one reason step count targets written for the general population sit awkwardly with older walkers. None of this makes the conversion useless. It just means any figure you get is a good estimate of a distance rather than a measurement of one.
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Your step length is how far one step carries you, heel to heel, and it's what turns a step count into kilometers. For most adults it's between 65 and 80 cm, so 10,000 steps covers somewhere from 6.5 to 8 km.
Say your goal is 8,000 steps and you're 165 cm tall. Your step comes out at about 68 cm, so 8,000 steps is about 5.5 km. If the walk to work and back already covers 3 km, you know before you leave the house that you need another 2.5 km at some point in the day, a loop of under half an hour at a brisk pace. That's the most useful thing the conversion does: it turns a step goal into a distance you can plan on a map, instead of a number you check at nine at night and find you're short of.
The height estimate can miss for you in two ways. People of the same height don't all walk with the same step, and a step 3 cm longer than the estimate adds 300 meters to every 10,000 steps. The count can be off too. A phone in a bag misses some steps, and a wrist tracker barely registers any while your hands are on a stroller or a shopping cart, because it's counting the swing of your arm. If your distance looks short on a day you pushed a stroller round the park, the count is a likelier culprit than your stride.
For a figure that's yours, use one longer walk rather than a few paces down the hallway. Pick a route of 2 to 3 km on open streets, where phone GPS does best, and note the distance and the steps for that walk alone. Divide the meters by the steps: 2,400 meters in 3,300 steps is a step of about 73 cm. A real walk includes your starts, stops and changes of pace the way a real day does, and once you have the number, any day's steps times your step length is your distance.
Walk With Me reads your steps from Apple Health or Health Connect and shows them against your daily goal, with an estimated distance alongside. Start a walk, even one set to just you, and it records your route by GPS while it counts your steps, so one walk gives you both numbers for the check above. Step counting and the step rankings are free; detailed stats such as streaks and personal records come with Premium.
About 7 km, or 4.4 miles, for an adult of 170 cm. Shorter walkers cover a little less and taller walkers a little more: about 6.4 km at 155 cm and about 7.9 km at 190 cm.
About 1,400 for someone 170 cm tall. The taller you are, the fewer it takes: about 1,560 at 155 cm and about 1,270 at 190 cm.
About 7,100 for an adult of 170 cm. That's a little under an hour at a brisk pace, so a 5 km walk on its own gets most adults close to a 7,000 step day.
No. The 41.4% ratio describes walking. Running steps are longer and change much more with speed, so the distance it gives for a run will come out too short.
Because it starts from different information. Phones and watches estimate distance from GPS on outdoor walks, or from a step length learned from your past walks, rather than from your height. Both are estimates, and a big gap usually means missed steps or GPS drifting between tall buildings.
No. The sum is worked out in your browser, and your height and step count aren't sent anywhere. The site only counts that the calculator was used, never the numbers in it.