How much is 20 acre in km?

Answer 1

"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.

Answer 2

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.

Answer 3

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.

Answer 4

8.09 hectare

Answer 5

20 acres is the same as 0.081 square km