Square Kilometer to Square Dekameter Converter
Unit Converter
Instant · Precise · Universal
23 units available
6 categories total
How to Convert Square Kilometer to Square Dekameter
To convert km² to mi²: multiply by 0.3861. To hectares: multiply by 100. To acres: multiply by 247.105.
1 km² = 1,000,000 m² = 100 ha = 247.105 acres ≈ 0.3861 mi².
For example, 1 Square Kilometer (km²) = 10000 Square Dekameter (dam²).
Square Kilometer to Square Dekameter — Common Values
| Square Kilometer (km²) | Square Dekameter (dam²) |
|---|---|
| 0.1 | 1000 |
| 0.5 | 5000 |
| 1 | 10000 |
| 2 | 20000 |
| 5 | 50000 |
| 10 | 100000 |
| 25 | 250000 |
| 50 | 500000 |
| 100 | 1000000 |
| 500 | 5000000 |
| 1000 | 10000000 |
About Square Kilometer (km²)
Definition
The square kilometer is a metric unit of area equal to 1,000,000 square meters, or a square with sides of 1 kilometer.
Mathematical Relationship
1 km² = 1,000,000 m² = 100 ha = 247.105 acres ≈ 0.3861 mi².
Conversion Formula
To convert km² to mi²: multiply by 0.3861. To hectares: multiply by 100. To acres: multiply by 247.105.
Practical Applications
Country areas, national park sizes, city footprints, forest coverage, and watershed boundaries.
Interesting Facts
Vatican City = 0.44 km². Manhattan = 59.1 km². Russia = 17,098,242 km² (largest country). Earth's surface = 510,072,000 km².
Common Mistakes
Thinking 1 km² = 1,000 m² (it's actually 1,000,000 m²). Area scales as the square of the linear dimension.
Educational Tips
1 km = 1,000 m, but 1 km² = 1,000² m² = 1,000,000 m². Always square the conversion factor for area.
About Square Dekameter (dam²)
Definition
The square dekameter is a metric unit of area equal to 100 square meters, also known as an 'are'.
Mathematical Relationship
1 dam² = 100 m² = 1 are = 0.01 ha = 0.001 hm².
Conversion Formula
To convert dam² to m²: multiply by 100. To hectares: divide by 100.
Practical Applications
Occasionally used for small land parcels in European property descriptions.
Interesting Facts
The 'are' is one of the few metric units that's almost completely obsolete — even the hectare (which means '100 ares') overshadowed it.
Common Mistakes
Confusing dam² (square dekameter, 100 m²) with dm² (square decimeter, 0.01 m²) — they differ by a factor of 10,000.
Educational Tips
Think: 1 are = 10 m × 10 m = 100 m². A hectare = 100 ares. The 'hect-' prefix means 100.