a to km²
39 unitsResult1.000000e-4
0.0001km²
1 a × 0.0001 = 0.0001 km²
Convert Are to Square kilometer (a to km²)
1 are = 0.0001 square kilometers. Convert ares to square kilometers instantly, with the exact factor, the formula and a reference table of common values.
Formula
square kilometers = ares × 0.0001
a to km² conversion table
| a | km² |
|---|---|
| 1 a | 0.0001 km² |
| 2 a | 0.0002 km² |
| 3 a | 0.0003 km² |
| 5 a | 0.0005 km² |
| 10 a | 0.001 km² |
| 20 a | 0.002 km² |
| 50 a | 0.005 km² |
| 100 a | 0.01 km² |
| 250 a | 0.025 km² |
| 500 a | 0.05 km² |
| 1000 a | 0.1 km² |
What is a are?
An are is 100 square meters, a square ten meters on each side. It was one of the original metric units of land, introduced in France in the 1790s.
The are itself is rarely used today, but it lives on inside the hectare, which is literally one hundred ares.
In writing, the are is usually shortened to "a". One are is 100 square meters, and that ratio is what every number on this page is built from.
Related conversions
All area units →Convert Are to all area units
| Conversion | 1 a equals |
|---|---|
| Are to acre | 0.02471053815 ac |
| Are to acre (US survey) | 0.0247104393 ac |
| Are to arpent | 0.02924923425 arpent |
| Are to barn | 1.000000e+30 b |
| Are to circular inch | 197352.516 circular inch |
| Are to circular mil | 197352524100 circular mil |
| Are to cuerda | 0.02544273135 cuerda |
| Are to Electron cross section | 1.503203e+30 Electron cross section |
| Are to hectare | 0.01 ha |
| Are to homestead | 0.0001544408634 homestead |
| Are to plaza | 0.015625 plaza |
| Are to rood | 0.09884215259 rood |
| Are to sabin | 1076.391042 sabin |
| Are to section | 0.00003861021585 section |
| Are to square centimeter | 1000000 cm² |
| Are to square chain | 0.2471053815 ch² |
| Are to square decimeter | 10000 dm² |
| Are to square dekameter | 1 dam² |
| Are to square foot | 1076.391042 ft² |
| Are to square foot (US survey) | 1076.386736 square foot (US survey) |
| Are to square hectometer | 0.01 hm² |
| Are to square inch | 155000.31 in² |
| Are to square kilometer | 0.0001 km² |
| Are to square meter | 100 m² |
| Are to square micrometer | 1.000000e+14 µm² |
| Are to square mil | 155000310000 mil² |
| Are to square mile | 0.00003861021585 mi² |
| Are to square mile (US survey) | 0.00003861006141 square mile (US survey) |
| Are to square millimeter | 100000000 mm² |
| Are to square nanometer | 1.000000e+20 nm² |
| Are to square perch | 3.953686103 square perch |
| Are to square pole | 3.953686103 square pole |
| Are to square rod | 3.953686103 square rod |
| Are to square rod (US survey) | 3.953670289 square rod (US survey) |
| Are to square yard | 119.5990046 yd² |
| Are to township | 0.000001072505996 township |
| Are to varas castellanas cuad | 143.1153639 varas castellanas cuad |
| Are to varas conuqueras cuad | 15.9017071 varas conuqueras cuad |