Area
Acres to Square kilometres Converter
1 ac = 0.004047 km²
0.004047 km²
1 ac = 0.004047 km²
Acres to Square kilometres conversion table
| Acres (ac) | Square kilometres (km²) |
|---|---|
| 1 | 0.004047 |
| 2 | 0.008094 |
| 5 | 0.020234 |
| 10 | 0.040469 |
| 25 | 0.101172 |
| 50 | 0.202343 |
| 100 | 0.404686 |
| 250 | 1.0117 |
| 500 | 2.0234 |
| 1,000 | 4.0469 |
How to convert acres to square kilometres
Multiply the number of acres by 0.004047 to get the equivalent in square kilometres. The full converter above handles decimals, negative values and the reverse direction automatically.
Need the other way? Convert square kilometres to acres.
More acres conversions
Acres → Square millimetres
1 ac = 4,046,860,000 mm²
Acres → Square centimetres
1 ac = 40,468,600 cm²
Acres → Square metres
1 ac = 4,046.86 m²
Acres → Hectares
1 ac = 0.404686 ha
Acres → Square inches
1 ac = 6,272,645.55 in²
Acres → Square feet
1 ac = 43,560.06 ft²
Acres → Square yards
1 ac = 4,840.01 yd²
Acres → Square miles
1 ac = 0.001563 mi²