"Acre" is a unit of area or coverage, as of a bedroom floor, or a plot of land.
"Kilometer" (Km) is a unit of length or distance, as of a finger, a piece of rope, or a trip to the moon.
The two units have different 'dimensions' and are used to measure different quantities.
Neither of them can be converted into the other one.
Your question as asked is nonsense as a kilometer is a measure of length whereas a hectare is a measure of area.
There are two possible questions that could have been asked based on the nonsense question asked; chose the one which you meant:
1) What is the perimeter in kilometers of an area of 20 hectares?
In this case the perimeter is any length greater than the minimal length which is when the area is a circle:
1 hectare = 10,000 m²
Area = π × radius²
→ radius = √(area / π)
Circumference = 2 × π × radius
→ circumference = 2 × π × √(area / π)
= 2 × √(area × π)
= 2 × √(20 × 10,000 m² × π)
≈ 1585 m
1000 m = 1 km
→1585 m = 1585 ÷ 1000 km = 1.585 km
The perimeter of 20 hectares is any length greater than approx 1.585 km
2) What is the area of 20 hectares in SQUARE kilometers
1 km = 1000 m
1 sq km = 1 km × 1 km = 1,000 m × 1,000 m = 1,000,000 sq m
1 hectare = 10,000 sq m
20 hectares = 20 × 10,000 sq m
= 200,000 sq m
= 200,000 ÷ 1,000,000 sq km
= 0.2 sq km.
None, since there can be no conversion. A kilometre is a measure of length in 1-dimensional space while a hectare is a measure of area in 2-dimensional space. The two measure different characteristics and, according to the most basic principles of dimensional analysis, any attempts at comparisons or conversions between the two are fundamentally flawed.
8.09 hectare
20 acres is the same as 0.081 square km
20 km is more than 9000 m:20 km = 20 000 m > 9000 m
A kilometre is roughly five eights of a mile, so divide by eight and multiply by five. More precisely: 20 kilometers are 12.42742 miles.20 kilometers are 12.42742 miles.The formula to convert 20 km to miles:20 km*1 mi1.609344 km=12.42742384 mi
32,266 CY
1 km = 1000 meter 8 km = 8*1000 = 8000 m
1000 m = 1 km 100 cm = 1 m ⇒ 100000 cm = 1 km ⇒ 6 cm = 6 ÷ 100000 km = 0.00006 km
1 acre is around 4.1km²
About 20% of an acre.
An acre is a unit of area. A kilometre is a unit of distance. The two units are therefore incompatible.
1 acre = 0.004047 square km, approx
1 acre is 0.0040469 square kilometers.
Answer: 1 acre = 0.004046 km²
One acre is 0.00404686 square km
Answer: 1 acre = 0.004046 km²
About 20% of an acre.
Km is distance, Acre is area - they don't compare. You've got to have square kilometers for the comparison to mean anything.
an acre is a measure of area whereas a kilometer is a measure of length, but a square kilometer is a measure of area, so I'll presume you meant square kilometers. 1 acre is approx 1/250 sq km = 0.004 sq km. 1 acre = 1/640 sq mile 1 mile ≈ 8/5 km 1 sq mi = 1 mi x 1 mi ≈ 8/5 km x 8/5 km = 64/25 sq km →1 acre = 1/640 sq mi ≈ 1/640 x 64/25 sq km = 1/250 sq km = 0.004 sq km
0.0040469 square km