Driving in the US or UK means road signs and speed limits in miles and mph, and many training logs, car range figures and travel distances are in miles too. A full marathon of 26.2 miles is about 42.16 km, and a 65 mph US highway limit is roughly 105 km/h.
Formula: km = mi × 1.609344. Example: 26.2 mi = 42.16 km. Table values are rounded to two decimal places (one for temperatures); use the converter above for more precision.
Multiply miles by 1.6 for a quick estimate: 10 miles is about 16 km (exactly 16.09). Note that the nautical mile used at sea and in aviation is 1.852 km, which is different from the statute mile on land.
