Square metric area unit.
Square Decimeters to Ares Converter — dm2 to a
Convert Square Decimeter (dm2) to Are (a) using the exact conversion factor (1 square decimeter = 0.0001 are). See the formula, worked examples, and conversion table.
Square Decimeters to Ares converter
Converter
Area Converter
Convert land, construction, mapping, survey, and scientific area units.
Context values
Some unit families need one extra value for a physically accurate result.
An are is 100 square meters.
Result = input x 0.01 / 100.
Area uses the square meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Square Decimeters to Ares
Comparing Square Decimeter and Are is common in agriculture and real estate, where US land is typically measured in acres and most of the rest of the world uses hectares. Specifically: Square metric area unit, and an are is 100 square meters.
Formula
ares = square decimeters × 0.0001
This factor comes from each unit's defined relationship to the category's base unit: 1 square decimeter equals 0.01 base units, and 1 are equals 100 base units, so dividing one by the other gives the direct square decimeter-to-are factor of 0.0001.
Simple example
1 dm2 × 0.0001 = 0.0001 a
1 square decimeter = 0.0001 ares.
Real-world example
10 dm2 × 0.0001 = 0.001 a
10 square decimeters = 0.001 ares.
Conversion table
| Square Decimeter (dm2) | Are (a) |
|---|---|
| 1 dm2 | 0.0001 a |
| 5 dm2 | 0.0005 a |
| 10 dm2 | 0.001 a |
| 25 dm2 | 0.0025 a |
| 50 dm2 | 0.005 a |
| 100 dm2 | 0.01 a |
Reverse conversion: Are to Square Decimeter
0.0001 a × 10000 = 1 dm2
0.0001 ares = 1 square decimeters.
square decimeters = ares × 10000
For a page dedicated to this direction, see Are to Square Decimeter.
Understanding the Square Decimeter (dm2)
Square metric area unit.
Understanding the Are (a)
An are is 100 square meters.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many ares are in 1 square decimeter?
1 square decimeter equals 0.0001 ares, using the exact defined conversion factor rather than an estimate.
How do I convert square decimeter to are?
Multiply the square decimeter value by 0.0001. The converter above does this instantly to whatever precision you set.
How do I convert are back to square decimeter?
Use the reverse factor: 1 are equals 10,000 square decimeters. You can also use the swap control in the converter above to flip the direction instantly.
What is a square decimeter?
Square Decimeter (dm2) is a unit of area.
What is a are?
Are (a) is a unit of area.
Is the square decimeter to are conversion exact?
Yes. Both square decimeter and are are defined by fixed standards rather than physical artifacts, so the factor of 0.0001 used above is exact to as many digits as you choose to display.