Square kilometers to Acres Converter

1 square kilometer (km²) equals 247.105381467 acres (ac).

Quick answer

  • 1 square kilometer = 247.1053815 acres
  • 1 acre = 0.004046856422 square kilometers
  • Formula: ac = km² × 247.105381467

1 square kilometer = 247.1053815 acres

How to convert square kilometers to acres

ac = km² × 247.105381467

To convert square kilometers to acres, multiply the number of square kilometers by 247.105381467.

Example: 42 km² to ac

  1. Start with the value in square kilometers: 42 km².
  2. Multiply by 247.105381467: 42 × 247.105381467 = 10,378.42602.
  3. Result: 42 square kilometers = 10,378.42602 acres.

Going the other way, 1 acre = 0.004046856422 square kilometers, so to convert acres back to square kilometers you divide by the same number. See acres to square kilometers.

Square kilometers to acres conversion table

Square kilometers (km²)Acres (ac)
0.1 km² 24.71053815 ac
0.2 km² 49.42107629 ac
0.3 km² 74.13161444 ac
0.4 km² 98.84215259 ac
0.5 km² 123.5526907 ac
0.6 km² 148.2632289 ac
0.7 km² 172.973767 ac
0.8 km² 197.6843052 ac
0.9 km² 222.3948433 ac
1 km² 247.1053815 ac
1.5 km² 370.6580722 ac
2 km² 494.2107629 ac
2.5 km² 617.7634537 ac
3 km² 741.3161444 ac
3.5 km² 864.8688351 ac
4 km² 988.4215259 ac
4.5 km² 1,111.974217 ac
5 km² 1,235.526907 ac
6 km² 1,482.632289 ac
7 km² 1,729.73767 ac
7.5 km² 1,853.290361 ac
8 km² 1,976.843052 ac
9 km² 2,223.948433 ac
10 km² 2,471.053815 ac
11 km² 2,718.159196 ac
12 km² 2,965.264578 ac
13 km² 3,212.369959 ac
14 km² 3,459.475341 ac
15 km² 3,706.580722 ac
16 km² 3,953.686103 ac
17 km² 4,200.791485 ac
18 km² 4,447.896866 ac
19 km² 4,695.002248 ac
20 km² 4,942.107629 ac
21 km² 5,189.213011 ac
22 km² 5,436.318392 ac
23 km² 5,683.423774 ac
24 km² 5,930.529155 ac
25 km² 6,177.634537 ac
26 km² 6,424.739918 ac

More km² to ac values

What is a square kilometer?

The square kilometer is the area of a square one kilometer on each side, one million square meters or 100 hectares, about 0.386 square miles.

More about square kilometers →

What is an acre?

The acre is a unit of land area equal to 43,560 square feet, 4,840 square yards, or about 4,047 square meters.

More about acres →

Convert square kilometers to other units

Convert other units to acres

Frequently asked questions

How many acres are in a square kilometer?

One square kilometer is 247.1053815 acres.

How many square kilometers are in an acre?

One acre is 0.004046856422 square kilometers.

What is the formula to convert square kilometers to acres?

ac = km² × 247.105381467.