Acres to Square Kilometers

Convert acres (ac) to square kilometers (km²) with formulas, examples, and conversion tables.

ac
km²
1 ac = 0.004047 km²
Full precision:0.0040469 km²
Step-by-Step Solution

To convert 1 acres to square kilometers, we divide by 247.105 because one square kilometer equals exactly 247.105 acres.

1 square kilometer = 247.105 acres

Since there are 247.105 acres in every square kilometer, we divide our value by this factor:

1 ÷ 247.105 = 0.004047 square kilometers

So 1 acres = 0.004047 square kilometers.

✓Quick check: 0.004047 × 247.105 = 1 acres
↔ Square Kilometers to Acres

How to Convert Acres to Square Kilometers

To convert acres to square kilometers, divide the value by 247.105.

The Formula

Square Kilometers = Acres ÷ 247.105

Key Fact

1 square kilometer = 247.105 acres

Tip: To convert square kilometers back to acres, multiply by 247.105.

Example Conversions

Example 1: 1 ac = 0.004047 km²
1 ÷ 247.105 = 0.004047
Example 2: 5 ac = 0.020234 km²
5 ÷ 247.105 = 0.020234
Example 3: 10 ac = 0.040469 km²
10 ÷ 247.105 = 0.040469

Acres to Square Kilometers Table

AcresSquare Kilometers
1 ac0.004047 km²
2 ac0.008094 km²
5 ac0.020234 km²
10 ac0.040469 km²
20 ac0.080937 km²
25 ac0.10117 km²
50 ac0.20234 km²
100 ac0.40469 km²
250 ac1.0117 km²
500 ac2.0234 km²
1000 ac4.0469 km²

1 Acre in Other Units

Unit1 ac =
Acres to Square Kilometers0.0040469 km²
Acres to Hectares0.40469 ha
Acres to Square Meters4046.86 m²
Acres to Square Centimeters40468600 cm²
Acres to Square Millimeters4046860000 mm²
Acres to Square Miles0.0015625 mi²
Acres to Square Yards4840.01 yd²
Acres to Square Feet43560.06 ft²
Acres to Square Inches6272645.55 in²
Acres to Ares40.4686 a
Acres to Barns4.0469e+31 b

Related Conversions

Square Meters to Square FeetSquare Feet to Square MetersAcres to HectaresHectares to AcresAcres to Square MetersSquare Meters to AcresSquare Kilometers to Square MilesSquare Miles to Square KilometersSquare Feet to Square InchesSquare Inches to Square Feet