About the yd to km calculation
One yard is exactly 0.0009144 kilometers, so converting between them is a single multiplication. Enter any value above and the result updates as you type. Survives mainly in sport — American football fields and cricket pitches. The standard road-distance unit in most of the world.
Formula
km = yd × 0.0009144
1 yd = 0.0009144 km
1 km = 1,093.61 ydWorked example
To convert 100 yd, multiply by 0.0009144: 100 × 0.0009144 = 0.09144 km.
Frequently asked questions
How many kilometers are in a yard?
There are 0.0009144 kilometers in one yard. To convert any amount, multiply the number of yards by 0.0009144.
How do I convert kilometers back to yards?
Divide instead of multiplying, or equivalently multiply by 1,093.61. One kilometer is 1,093.61 yards.
Is this conversion exact?
Yes. Since the international agreement of 1959, the relationship between yards and kilometers is defined exactly rather than measured, so the only rounding here is in how many decimal places we show.
Where is each of these units used?
Yards: survives mainly in sport — American football fields and cricket pitches. Kilometers: the standard road-distance unit in most of the world.
Sources
- NIST Special Publication 811 — Guide for the Use of the International System of Units