Convert Acre to Square Kilometer

How to convert Acres to Square Kilometers?

Recall the constants: 1 acre = 43,560 ft² = 4,046.8564224 m². Since 1 km² = (10³ m)² = 10⁶ m², the acre → km² factor is:

1 acre = 4,046.8564224 / 1,000,000 km² = 0.0040468564224 km²

Thus, for any area A in acres:

A_km² = A_acre × 0.0040468564224

Equivalently (inversion):

A_acre = A_km² ÷ 0.0040468564224

Conversion formula: acre to sq km

Example calculation

• Square Kilometers = Acre × 0.004047
• Square Kilometers = 580 × 0.004047
• Square Kilometers = 2.347177

FAQ

How many square kilometers are in one acre?

• One acre is equal to 0.0040468564224 square kilometers. This conversion is derived from the exact relationship 1 acre = 4,046.8564224 square meters, and since 1 km2 = 1,000,000 m2, dividing gives 0.0040468564224 km2 per acre.

What is the formula to convert acres to square kilometers?

• To convert acres to square kilometers, multiply the number of acres by 0.0040468564224. The formula is: Area (km2) = Area (acres) × 0.0040468564224.

When is it useful to convert acres to square kilometers?

• This conversion is essential in geography, environmental studies, and land management when comparing land areas between metric and imperial systems. It helps standardize data for international reports and scientific analysis.

Dimensions of Acre

Unit	1 Acre
Square feet	43560 sq ft
Square yard	4840 sq yd
Square meters	4046,85 sq mt
Square centimeters	40468564,22 sq cm
Square kilometers	0,004047 sq km
Square Inches	6272640 sq in
Square Miles	0,001563 sq mi
Hectare	0,404686 ha

Popular Acres to Square Kilometers conversions

Acre	Square Kilometers
1 acre	0,004047 sq km
2 acre	0,008094 sq km
3 acre	0,012141 sq km
4 acre	0,016187 sq km
5 acre	0,020234 sq km
6 acre	0,024281 sq km
7 acre	0,028328 sq km
8 acre	0,032375 sq km
9 acre	0,036422 sq km
10 acre	0,040469 sq km
20 acre	0,080937 sq km
30 acre	0,121406 sq km
40 acre	0,161874 sq km
50 acre	0,202343 sq km
100 acre	0,404686 sq km
1000 acre	4,046856 sq km