Square Millimeters to Hectares
Convert square millimeters (mm²) to hectares (ha). Type in either box; the other updates as you go.
How to convert square millimeters to hectares
To convert square millimeters to hectares, multiply the number of square millimeters by 1 × 10⁻¹⁰.
Example
Convert 50,000,000 square millimeters to hectares:
Square Millimeter to hectare conversion chart
| Square Millimeters (mm²) | Hectares (ha) |
|---|---|
| 10,000,000 mm² | 0.001 ha |
| 20,000,000 mm² | 0.002 ha |
| 30,000,000 mm² | 0.003 ha |
| 40,000,000 mm² | 0.004 ha |
| 50,000,000 mm² | 0.005 ha |
| 60,000,000 mm² | 0.006 ha |
| 70,000,000 mm² | 0.007 ha |
| 80,000,000 mm² | 0.008 ha |
| 90,000,000 mm² | 0.009 ha |
| 100,000,000 mm² | 0.01 ha |
| 120,000,000 mm² | 0.012 ha |
| 150,000,000 mm² | 0.015 ha |
| 200,000,000 mm² | 0.02 ha |
| 250,000,000 mm² | 0.025 ha |
| 300,000,000 mm² | 0.03 ha |
| 400,000,000 mm² | 0.04 ha |
| 500,000,000 mm² | 0.05 ha |
| 600,000,000 mm² | 0.06 ha |
| 700,000,000 mm² | 0.07 ha |
| 750,000,000 mm² | 0.075 ha |
| 800,000,000 mm² | 0.08 ha |
| 900,000,000 mm² | 0.09 ha |
| 1,000,000,000 mm² | 0.1 ha |
| 1,500,000,000 mm² | 0.15 ha |
| 2,000,000,000 mm² | 0.2 ha |
| 2,500,000,000 mm² | 0.25 ha |
| 5,000,000,000 mm² | 0.5 ha |
| 10,000,000,000 mm² | 1 ha |
Going the other way? See the hectares to square millimeters chart.
About the units
Square Millimeter (mm²)
A square millimeter is one millionth of a square meter. Wire cross-sections are often given in square millimeters.
Hectare (ha)
A hectare is 10,000 square meters, a square 100 meters on each side, or about 2.47 acres. It is the standard unit for farmland outside the US.
Frequently asked questions
How many hectares are in a square millimeter?
There are 1 × 10⁻¹⁰ hectares in a square millimeter.
How many square millimeters are in a hectare?
There are 10,000,000,000 square millimeters in a hectare.
How do you convert square millimeters to hectares?
To convert square millimeters to hectares, multiply the number of square millimeters by 1 × 10⁻¹⁰.
What is 50,000,000 square millimeters in hectares?
50,000,000 square millimeters equals 0.005 hectares.
Convert between square feet, square meters, acres, hectares and other units of area. Open the area converter to see a value in every unit at once.