Miles to KM
Convert miles to kilometres — 1 mile is exactly 1.609 km. With the add-60-percent rule and a distance table.
Fast, easy and free — your answer appears as you type, and whatever you enter stays on your device.
One mile is exactly 1.609344 kilometres — add roughly 60% to miles to get kilometres. Type any distance below for the precise figure as you type.
How to use it
- Type the mile valueThe kilometre answer appears as you type — no button to press.
- Or go the other waySwap flips the direction to kilometre → mile in one tap.
- Check the workingThe exact factor or formula used is shown beneath the answer, so the result is checkable, not just asserted.
Miles in kilometres
| mi | km |
|---|---|
| 1 mi | 1.609 km |
| 3 mi | 4.828 km |
| 5 mi | 8.047 km |
| 10 mi | 16.09 km |
| 26.2 mi | 42.16 km |
| 50 mi | 80.47 km |
| 100 mi | 160.9 km |
The quick rule for your head
Add half, then add a tenth: 20 miles → 20 + 10 + 2 = 32 km (exact: 32.2). Or run the Fibonacci trick backwards — 5 miles ≈ 8 km, 8 miles ≈ 13 km. For marathon runners the anchor is memorable: 26.2 miles is 42.2 km, both burned into the same race.
Where this conversion shows up
US and UK distances entering a metric life: an American '20 miles away' becomes 32 km for anyone whose sense of distance is metric, treadmill imports display miles that gym-goers translate, and UK driving directions need conversion everywhere south of the Channel.
Need other units too? The fulllength converter handles every pair and shows the exact factor behind each answer. For the opposite direction, use KM to Miles.
Questions people ask
How many km is 1 mile?
Exactly 1.609344 km — a definition since 1959, not a measurement. Rounding to 1.6 is under 0.6% out, fine for everything but surveying.
How far is a marathon in km?
42.195 km, from 26 miles 385 yards. The odd yardage dates to the 1908 London Olympics, when the course was stretched so the finish sat in front of the royal box.
What is 60 mph in km/h?
96.6 km/h — effectively the metric 100. Speeds convert with the same factor; the dedicated km/h–mph page has the road-speed table.
Are nautical miles the same?
No — a nautical mile is 1.852 km, about 15% longer, and belongs to sea and air navigation. This page converts statute miles, the road kind.