How far is 100 miles?
100 miles is 160.9 kilometers — that is about halfway to the trip from New York City to Washington, DC. Expect about 16.1 hours of moving time at 10 km/h, or 32.2 hours at a 5 km/h walking pace.
100 miles is the distance that sounds impossible until you split it across a season — then it’s a steady few miles a week.
Set your number below and the planner will chart the path. Log each outing in the Run Across America app and watch the gap close.
Step 1: Convert 100 miles and set your goal
Whether you think in miles or kilometers, you can figure out about how far you want to go this season with this handy distance converter. Now you know how far 100 miles is!
Step 2: Chart your path to 100 miles
Now, how will you achieve it? One day at a time. Customize the options to match your week and this planner will map out a steadier path to your goal.
100 miles broken down by how often you move
The chart above follows the live season calendar. If you would rather plan against a round number of days, here is what 100 miles works out to each time you get moving.
| Plan length | 3 days / week | 5 days / week | 7 days / week |
|---|---|---|---|
| 30 days |
12.4 km
7.7 mi |
7.7 km
4.8 mi |
5.4 km
3.3 mi |
| 60 days |
6.2 km
3.8 mi |
3.7 km
2.3 mi |
2.7 km
1.7 mi |
| 90 days |
4.1 km
2.6 mi |
2.5 km
1.6 mi |
1.8 km
1.1 mi |
100 miles: common questions
How many kilometers is 100 miles?
100 miles is 160.9 kilometers.
What does 100 miles compare to?
100 miles is about halfway to the trip from New York City to Washington, DC.
How long does it take to cover 100 miles?
About 16.1 hours of moving time at 10 km/h, or 32.2 hours at a 5 km/h walking pace. Most people spread it across a whole season rather than a single effort.
How far do I need to go each time I get moving to reach 100 miles?
Over a 60-day season, moving three days a week, that is about 26 days of 6.2 km (3.8 mi) each. Use the planner on this page to adjust the schedule to your own week.
Good to know
This is an estimate, not a rulebook. Go further than the plan suggests and you'll get there sooner; take a day off and you can make it up later. Nobody is behind.
Does everything count, or just running?
Everything. Walk, bike, hike, swim, push a stroller — if it gets you moving, it counts toward your distance.
Do bonus challenges count toward my goal?
Yes. Bonus challenges pop up throughout the season, and the distance you cover in one counts like any other
activity. The planner above counts the upcoming ones, so the distance it suggests each time you get moving
already allows for them.