I spent 34 hours walking the last 100 kilometers of the Appalachian Trail, from Smithsburg, Maryland, to Boiling Springs, Pennsylvania (approximately 108 kilometers), resting for about 5 hours to sleep. That was, however, after nearly six months of daily walking.
However, it takes most people between 20 to 25 hours to walk 100 km. If you walk at 4 km/h, you will take 25 hours, and at 5 km/h, it takes 20 hours. It is noteworthy that undertaking a 100 km walk without any rest in a single stretch is not a feasible or secure option for the majority of individuals.
Walking 100km is no small feat, and it’s a challenge that many people choose to take on. Whether you’re doing it for fun, for a charity walk, or as part of a pilgrimage, it’s important to have an idea of how long it will take to complete the distance. Many factors can affect the time it takes to walk 100km, including the terrain, weather, and the pace at which you walk.
How long are 100 km? 100 km is equal to 62.13 miles and 328084 feet.
How Long Does It Take to Walk 100km?
The time it takes to walk 100km depends on your walking speed. Let’s see:
| Walking Speed | Time for 100 km walking |
| Slow Walk (4 kph) / 60 to 79 steps per minute/ 15 minutes per kilometer | 25 hrs |
| Easy Walk (5 kph)/ 80 to 99 steps per minute/ 12 minutes per kilometer | 20 hrs |
| Moderate Walk (6.5 kph)/ 100 to 119 steps per minute/9 minutes per kilometer | 15 hrs |
| Fast Walk (8 kph)/ 120+ steps per minute/ 7.5 minutes per kilometer | 12 hrs 30 min |
Breaking Down the Distance
If you’re planning to walk 100km, it’s important to plan your journey and break down the distance into manageable chunks. The table below shows how many days, how many hours a day, and how many kilometers a day you need to walk to reach 100km based on a walking speed of 5 kilometers per hour.
| If you walk daily _km | Daily walking Times (Speed 5 kph) | = Days to complete 100 km |
| 2 kilometers | 24 min | 50 days |
| 3 kilometers | 36 min | 34 days |
| 4 kilometers | 48 min | 25 days |
| 5 kilometers | 1 hr | 20 days |
| 6 kilometers | 1 hr 12 | 17 days |
| 7 kilometers | 1 hr 24 min | 15 days |
| 8 kilometers | 1 hr 36 min | 13 days |
| 9 kilometers | 1 hr 48 min | 12 days |
| 10 kilometers | 2 hrs | 10 days |
| 11 kilometers | 2 hrs 12 min | 9 days |
| 12 kilometers | 2 hrs 24 min | 9 days |
| 13 kilometers | 2 hrs 36 min | 8 days |
| 14 kilometers | 2 hrs 48 min | 8 days |
| 15 kilometers | 3 hrs | 7 days |
| 16 kilometers | 3 hrs 12 min | 7 days |
| 17 kilometers | 3 hrs 24 min | 6 days |
| 18 kilometers | 3 hrs 36 min | 6 days |
| 19 kilometers | 3 hrs 48 min | 6 days |
| 20 kilometers | 4 hrs | 5 days |
A more acceptable expectation for someone who hasn’t done much walking but is in good health and physical shape is to do it over 5 or 7 days.
100 Km: Average Walking Time by Age And Gender:
Age and gender can also affect your walking speed. Studies have found that men generally walk faster than women, and walking speed decreases with age. The average walking speed for men and women in different age groups is listed in the below table.
| Age | Gender | Average speed (Kph) | How long does it take to walk 100 km |
| 20-29 | Male | 4.89 | 20 hrs 27 min |
| Female | 4.82 | 20 hrs 45 min | |
| 30-39 | Male | 5.14 | 19 hrs 27 min |
| Female | 4.82 | 20 hrs 45 min | |
| 40-49 | Male | 5.14 | 19 hrs 27 min |
| Female | 5.00 | 20 hrs | |
| 50-59 | Male | 5.14 | 19 hrs 27 min |
| Female | 4.71 | 21 hrs 14 min | |
| 60-69 | Male | 4.82 | 20 hrs 45 min |
| Female | 4.45 | 22 hrs 28 min | |
| 70-79 | Male | 4.53 | 22 hrs 05 min |
| Female | 4.07 | 24 hrs 34 min | |
| 80-89 | Male | 3.49 | 28 hrs 39 min |
| Female | 3.37 | 29 hrs 40 min |
Walking 100 km is a challenging task that requires a combination of physical and mental strength. The time it takes to complete the distance varies depending on various factors such as walking speed, age, gender, and distance walked per day. It is essential to consider these factors when estimating the time it would take for an individual to walk 100 km. Whether you are walking for fun, for a charity event, or as part of a pilgrimage, it is crucial to prepare adequately, train regularly, and take rest periods to avoid exhaustion and injury. With the proper preparation, you can complete the challenge and achieve your goal of walking 100 km.
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