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Kilometres to Miles

1 kilometre = 0.62137 miles · 1 mi = 1.6093 km

1 kilometre = 0.62137 miles

How it’s calculated

mi = km ÷ 1.609344

  • Divide the value in kilometres by 1.609344.
  • Equivalently, multiply by 0.6213711922.
  • 1 km = 0.6213711922 mi · 1 mi = 1.609344 km
Show worked solutionFactor, unit cancellation and rounding, step by step

  1. Find the conversion factor

    By definition 1 km = 1000 m and 1 mi = 1609.344 m, so 1 mi = 1.609344 km. Source: BIPM SI Brochure (9th ed.); NIST SP 811 / Handbook 44.

  2. Multiply by the factor written as a fraction

    Put km in the denominator so it cancels, leaving mi.

  3. Calculate (unrounded)

  4. Round the answer

    Rounded to 5 significant figures.

Answer: 0.62137 mi

1 km in other units

Batch convert km → mi
Results
  1. 1 km = 0.62137 mi
  2. 5 km = 3.1069 mi
  3. 10 km = 6.2137 mi
  4. 25 km = 15.534 mi

Permanent link to this conversion

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Quick examples

  • 1 kilometre = 0.62137 miles
  • 5 kilometres = 3.1069 miles
  • 10 kilometres = 6.2137 miles
  • 25 kilometres = 15.534 miles
  • 100 kilometres = 62.137 miles

About these units

Kilometre (km)

SI (metric)

Exactly 1 000 metres.

1 km = 1000 m

Source: BIPM SI Brochure (9th ed.)

Mile (mi)

US & imperial (identical)

Exactly 5 280 feet = 1 609.344 m (international mile).

1 mi = 1609.344 m

Source: NIST SP 811 / Handbook 44

Kilometres to miles conversion table

kilometre (km) to mile (mi)
Kilometres (km)Miles (mi)
0.1 km0.062137 mi
0.5 km0.31069 mi
1 km0.62137 mi
2 km1.2427 mi
3 km1.8641 mi
4 km2.4855 mi
5 km3.1069 mi
6 km3.7282 mi
7 km4.3496 mi
8 km4.971 mi
9 km5.5923 mi
10 km6.2137 mi
15 km9.3206 mi
20 km12.427 mi
25 km15.534 mi
30 km18.641 mi
40 km24.855 mi
50 km31.069 mi
75 km46.603 mi
100 km62.137 mi
250 km155.34 mi
500 km310.69 mi
1,000 km621.37 mi

Related conversions

Frequently asked questions

How do I convert kilometres to miles?

Use mi = km ÷ 1.609344. Divide the value in kilometres by 1.609344.

How many miles are in 1 kilometre?

1 kilometre (km) equals 0.62137 miles (mi); more precisely 0.6213711922.

How many kilometres are in 1 mile?

1 mile (mi) equals 1.6093 kilometres (km); more precisely 1.609344.

What is 10 km in mi?

10 kilometres = 6.2137 miles.

What is a kilometre?

Exactly 1 000 metres.

What is a mile?

Exactly 5 280 feet = 1 609.344 m (international mile).

Formula: mi = km ÷ 1.609344. Factors last reviewed 2026-10-27.