Convert 1 acre to square kilometer

1 acre is equal to 0.004046856422399924 km² (square kilometer). To convert from acre to square kilometer, multiply by 0.004046856422399924 or divide by 247.10538146717.

• 1 acre × 0.0040468564223999 = 0.0040468564223999 km²
• 1 acre ÷ 247.10538146717 = 0.0040468564223999 km²