Acre to Square Kilometer Converter
1 ac = 0.004047 km²
1 ac = 0.004047 km²
Acre to Square Kilometer Table
| Acre (ac) | Square Kilometer (km²) |
|---|---|
| 0.01 | 0.0000404686 |
| 0.1 | 0.000404686 |
| 1 | 0.004047 |
| 2 | 0.008094 |
| 5 | 0.020234 |
| 10 | 0.040469 |
| 20 | 0.080937 |
| 50 | 0.202343 |
| 100 | 0.404686 |
| 500 | 2.0234 |
| 1000 | 4.0469 |
How to Convert Acre to Square Kilometer
To convert Acre (ac) to Square Kilometer (km²), use the formula: 1 ac = 0.004047 km².
For example, to convert 5 ac to km²: 5 ac = 0.020234 km². Similarly, 10 ac = 0.040469 km², 25 ac = 0.101171 km², and 100 ac = 0.404686 km².
To convert in the other direction, 1 km² = 247.11 ac. Simply enter your value in either field above for instant bi-directional conversion.
What is a Acre?
An acre equals 43,560 square feet or about 4,047 square meters. Acres are the primary land measurement in the US and UK for real estate and farming.
What is a Square Kilometer?
A square kilometer (km²) equals 1,000,000 square meters. Square kilometers are used for countries, cities, and large geographic regions.
Common Acre to Square Kilometer Conversions
Here are some frequently looked-up conversions between Acre and Square Kilometer:
- 1 ac = 0.004047 km²
- 5 ac = 0.020234 km²
- 10 ac = 0.040469 km²
- 25 ac = 0.101171 km²
- 100 ac = 0.404686 km²