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Miles to Kilometres

1 mile = 1.6093 kilometres · 1 km = 0.62137 mi

1 mile = 1.6093 kilometres

How it’s calculated

km = mi × 1.609344

  • Multiply the value in miles by 1.609344.
  • To go back, divide by 1.609344 (or multiply by 0.6213711922).
  • 1 mi = 1.609344 km · 1 km = 0.6213711922 mi
Show worked solutionFactor, unit cancellation and rounding, step by step

  1. Find the conversion factor

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

  2. Multiply by the factor written as a fraction

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

  3. Calculate (unrounded)

  4. Round the answer

    Rounded to 5 significant figures.

Answer: 1.6093 km

1 mi in other units

Batch convert mi → km
Results
  1. 1 mi = 1.6093 km
  2. 5 mi = 8.0467 km
  3. 10 mi = 16.093 km
  4. 25 mi = 40.234 km

Permanent link to this conversion

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Quick examples

  • 1 mile = 1.6093 kilometres
  • 5 miles = 8.0467 kilometres
  • 10 miles = 16.093 kilometres
  • 25 miles = 40.234 kilometres
  • 100 miles = 160.93 kilometres

About these units

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

Kilometre (km)

SI (metric)

Exactly 1 000 metres.

1 km = 1000 m

Source: BIPM SI Brochure (9th ed.)

Miles to kilometres conversion table

mile (mi) to kilometre (km)
Miles (mi)Kilometres (km)
0.1 mi0.16093 km
0.5 mi0.80467 km
1 mi1.6093 km
2 mi3.2187 km
3 mi4.828 km
4 mi6.4374 km
5 mi8.0467 km
6 mi9.6561 km
7 mi11.265 km
8 mi12.875 km
9 mi14.484 km
10 mi16.093 km
15 mi24.14 km
20 mi32.187 km
25 mi40.234 km
30 mi48.28 km
40 mi64.374 km
50 mi80.467 km
75 mi120.7 km
100 mi160.93 km
250 mi402.34 km
500 mi804.67 km
1,000 mi1,609.3 km

Related conversions

Frequently asked questions

How do I convert miles to kilometres?

Use km = mi × 1.609344. Multiply the value in miles by 1.609344.

How many kilometres are in 1 mile?

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

How many miles are in 1 kilometre?

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

What is 10 mi in km?

10 miles = 16.093 kilometres.

What is a mile?

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

What is a kilometre?

Exactly 1 000 metres.

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