At One Place

20 km to mi

20 kilometers in miles
20 km = 12.42742 mi
mi = km × 0.6213711922

20 kilometers is 12.42742 miles. To get there, multiply by 0.6213711922.

Values either side

Kilometers near 20, converted to miles.
Kilometers Miles
16 km 9.941939
17 km 10.56331
18 km 11.18468
19 km 11.80605
20 km ← 12.42742
21 km 13.0488
22 km 13.67017
23 km 14.29154
24 km 14.91291

How the conversion works

The relationship is mi = km × 0.6213711922. Both units measure length, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.

Common questions

What is 20 km in miles?
20 km is 12.42742 mi.
How do you convert kilometers to miles?
Multiply by 0.6213711922.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked