Table Of Contents
Square decimeter to hectares Conversion
1 square decimeter (dm²) is equal to 0.000001 hectares (hectare).
1 dm² = 0.000001 hectare
or
1 hectare = 1000000 dm²
Formula
To convert a area from square decimeter (dm²) to hectares (hectare), divide the area in square decimeter by 1000000
a(hectare) = a(dm²) / 1000000
Examples:
Convert 1 square decimeter to hectares:
a(hectare) = 1dm² / 1000000 = 0.000001 hectare
Conversion table
| Square decimeter (dm²) | Hectares (hectare) |
|---|---|
| 1 dm² | 1e-6 hectare |
| 2 dm² | 2e-6 hectare |
| 3 dm² | 3e-6 hectare |
| 5 dm² | 5e-6 hectare |
| 10 dm² | 1e-5 hectare |
| 20 dm² | 2e-5 hectare |
| 25 dm² | 2.5e-5 hectare |
| 50 dm² | 5e-5 hectare |
| 100 dm² | 1.0e-4 hectare |
| 250 dm² | 2.5e-4 hectare |
| 500 dm² | 5.0e-4 hectare |
| 1000 dm² | 0.001 hectare |
| Hectares (hectare) | Square decimeter (dm²) |
|---|---|
| 1 hectare | 1000000 dm² |
| 2 hectare | 2000000 dm² |
| 3 hectare | 3000000 dm² |
| 5 hectare | 5000000 dm² |
| 10 hectare | 10000000 dm² |
| 20 hectare | 20000000 dm² |
| 25 hectare | 25000000 dm² |
| 50 hectare | 50000000 dm² |
| 100 hectare | 100000000 dm² |
| 250 hectare | 250000000 dm² |
| 500 hectare | 500000000 dm² |
| 1000 hectare | 1e9 dm² |
Frequently asked questions
How do I convert square decimeter to hectares?
Divide the value in square decimeter by 1000000 to get the result in hectares. For example, 5 dm² ÷ 1000000 = 5e-6 hectare.
How many hectares are in 1 square decimeter?
1 square decimeter (dm²) is equal to 1e-6 hectares (hectare).
How do I convert hectares back to square decimeter?
Use the inverse operation: multiply the value in hectares by 1000000 to get the result in square decimeter.
How accurate is the square decimeter to hectares conversion?
The converter multiplies by the conversion factor 1000000 and rounds the result to 9 decimal places by default. You can increase or reduce the precision with the digits option on this page.
Sources
Conversion factors are based on internationally recognised standards:
- BIPM — The International System of Units (SI Brochure, 9th edition)
- NIST Handbook 44, Appendix C — General Tables of Units of Measurement (current edition)
- U.S. Survey Foot: Revised Unit Conversion Factors
- NIST Guide to the SI (SP 811), Appendix B.9: Factors for units listed by kind of quantity or field of science
