Convert acres to square kilometers
Acres to square kilometers. Enter a value to convert, or use the acres to square kilometers chart further down the page.
1 acre equals 0.004046856422 square kilometers. Going the other way, 1 square kilometer = 247.1053815 acres.
How to convert acres to square kilometers
To convert acres to square kilometers, multiply the acre value by 0.004046856422. You can also divide by 247.1053815 to get the same answer.
km² = ac × 0.004046856422
Worked example
Convert 15 ac to square kilometers:
15 ac = 0.06070284634 km²
acres to square kilometers conversion chart
Use this acres to square kilometers table for quick reference without typing anything.
| acres (ac) | square kilometers (km²) |
|---|---|
| 0.01 ac | 0.00004046856422 km² |
| 0.1 ac | 0.0004046856422 km² |
| 1 ac | 0.004046856422 km² |
| 2 ac | 0.008093712845 km² |
| 3 ac | 0.01214056927 km² |
| 5 ac | 0.02023428211 km² |
| 10 ac | 0.04046856422 km² |
| 20 ac | 0.08093712845 km² |
| 50 ac | 0.2023428211 km² |
| 100 ac | 0.4046856422 km² |
| 1,000 ac | 4.046856422 km² |
What is a acre?
The acre is exactly 4,046.8564224 square meters, historically the area one ox team could plough in a day. It is the standard unit of land area in the US and UK.
What is a square kilometer?
A square kilometer is one million square meters, or 100 hectares. It is the standard unit for the area of towns, lakes and countries.
Frequently asked questions
How many square kilometers are in an acre?
1 acres equals 0.004046856422 square kilometers. Going the other way, 1 square kilometers is 247.1053815 acres.
How do you convert acres to square kilometers?
To convert acres to square kilometers, multiply the acre value by 0.004046856422. You can also divide by 247.1053815 to get the same answer.
What is 10 acres in square kilometers?
10 acres equals 0.04046856422 square kilometers. The conversion chart on this page lists the other values people look up most often.
Related area conversions
Convert acres to other units
- square kilometers to acres
- acres to square meters
- acres to square feet
- acres to hectares
- acres to square miles
- acres to square yards
- acres to square inches
- acres to square centimeters
Convert other units to square kilometers
- square meters to square kilometers
- square feet to square kilometers
- hectares to square kilometers
- square miles to square kilometers
- square yards to square kilometers
- square inches to square kilometers
- square centimeters to square kilometers
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