Square kilometers to acres

acres = square kilometers × 247.105381

How to convert square kilometers to acres

One square kilometer is 247.105381 acres, so multiply the number of square kilometers by 247.105381. For example, 20 square kilometers is 20 × 247.105381 = 4,942.11 acres. To go back, divide by the same number, or multiply by 0.00404686.

Quick estimate

Multiplying by about 200 gets within 19.1% of the exact answer, which is enough to check that a result makes sense.

Where it comes up

Area conversions come up when buying flooring, paint or turf, comparing house and flat sizes, and measuring land and gardens.

square kilometers	acres
1 km2	247.105381 ac
2 km2	494.210763 ac
3 km2	741.316144 ac
4 km2	988.421526 ac
5 km2	1,235.53 ac
6 km2	1,482.63 ac
7 km2	1,729.74 ac
8 km2	1,976.84 ac
9 km2	2,223.95 ac
10 km2	2,471.05 ac
11 km2	2,718.16 ac
12 km2	2,965.26 ac
13 km2	3,212.37 ac
14 km2	3,459.48 ac
15 km2	3,706.58 ac
16 km2	3,953.69 ac
17 km2	4,200.79 ac
18 km2	4,447.9 ac
19 km2	4,695 ac
20 km2	4,942.11 ac
25 km2	6,177.63 ac
30 km2	7,413.16 ac
40 km2	9,884.22 ac
50 km2	12,355.27 ac
60 km2	14,826.32 ac
70 km2	17,297.38 ac
75 km2	18,532.9 ac
80 km2	19,768.43 ac
90 km2	22,239.48 ac
100 km2	24,710.54 ac
120 km2	29,652.65 ac
150 km2	37,065.81 ac
200 km2	49,421.08 ac
250 km2	61,776.35 ac
300 km2	74,131.61 ac
400 km2	98,842.15 ac
500 km2	123,552.69 ac
750 km2	185,329.04 ac
1,000 km2	247,105.38 ac
1,500 km2	370,658.07 ac
2,000 km2	494,210.76 ac
5,000 km2	1,235,526.91 ac
10,000 km2	2,471,053.81 ac

Questions

How many acres are in a square kilometer?

247.105381 acres.

How do I convert square kilometers to acres in a spreadsheet?

Put the value in A1 and type =A1*247.105381, then fill the formula down the column.

Are the values in the table exact?

They are calculated from the exact definitions of the units and rounded only for display. Open any row for the full working.