The question really doesn't make sense because an acre is a measurement of area and a kilometer is a measurement of length/distance.
Well i think he meant Km2 (square), not the length. One acre is equal to 4080m2 and One Km square is 1000m2, the rest is easy.
1 million acres = 4046.856 sq km (to 3 dp).
You can relax and quit worrying about both problems. No number of acres can be converted into km. In fact, no amount of area can be converted into a quantity of length.
The United States of America is about 3.794 million square miles in area (9.827 million km squared).This is equal to 2,428,160,000 acres.
2.5 acres
One square mile = 640 acres.
Answer: 1 km² = 247.105 acres
1 square kilometer is 247.11 acres.
Answer: 2 km² = 494.210 acres
Answer: 1 km² = 247.105 acres
Seven (7) square km equates to about 1,730(1,729.73767) acres.
Answer: 50 acres = 0.202342 km²
150 acres is 0.607028 km2
580 acres (2.3 km 2)
10 acres is 0.0404686 square km
Answer: 12,500 acres = 50.5857 km²
25 acres is 0.101171 square km
1.38 acres is 0.00558 square km