DailyCalc

Kilometers to Miles (km to mi)

1 km ≈ 0.621371 mi. Type any value to convert it.

1 kilometer =

0.6213711922 mi

miles

Conversion factor
1 km ≈ 0.6213711922 mi
Feet + inches
3,280 ft 10.08 in

Fix the highlighted field to update the result.

Show in all common units
1 km in other units
UnitValue
millimeter (mm)1,000,000 mm
centimeter (cm)100,000 cm
meter (m)1,000 m
kilometer (km)1 km
inch (in)39,370.07874 in
foot (ft)3,280.839895 ft
yard (yd)1,093.613298 yd
mile (mi)0.6213711922 mi
nautical mile (nmi)0.5399568035 nmi

How to convert kilometers to miles

1 km ≈ 0.621371 mi

1 mi = 1,609.344 m exactly (NIST SP 811), so miles = km ÷ 1.609344. One kilometer is about 0.6213712 mi.

Examples

  • 42.195 km = 26.218757 mi: Official marathon distance (World Athletics)
  • 5 km = 3.106856 mi: A five-kilometer fun run
  • 100 km = 62.137119 mi: A day's drive measured in kilometers

Km to miles chart

Kilometers to miles
Kilometers (km)Miles (mi)
1 km0.62137119 mi
2 km1.2427424 mi
3 km1.8641136 mi
4 km2.4854848 mi
5 km3.106856 mi
10 km6.2137119 mi
15 km9.3205679 mi
20 km12.427424 mi
25 km15.53428 mi
42.195 km26.218757 mi
50 km31.06856 mi
75 km46.602839 mi
100 km62.137119 mi

Common mistakes

  • A nautical mile is exactly 1,852 m, about 15% longer than the 1,609.344 m statute mile; don't mix them.
  • Speed converts with the same factor: 100 km/h is about 62.1 mph.

Frequently asked questions

How many miles is 1 km?

About 0.621 miles. Divide kilometers by 1.609344, or multiply by 0.6213712, to get miles.

How many miles is a marathon?

About 26.22 miles. World Athletics sets the marathon at 42.195 km and describes it as 26 miles 385 yards.

How many miles is a 5K?

A 5K is about 3.11 miles. A 10K is about 6.21 miles.

Is there a quick way to estimate km to miles?

Multiply by 0.6, or remember 5 km is roughly 3 miles. Both run about 3.4% low, so use the exact factor for anything official.