Hectares to Square Millimeters
Convert hectares (ha) to square millimeters (mm²). Type in either box; the other updates as you go.
How to convert hectares to square millimeters
To convert hectares to square millimeters, multiply the number of hectares by 10,000,000,000.
Example
Convert 5 hectares to square millimeters:
Hectare to square millimeter conversion chart
| Hectares (ha) | Square Millimeters (mm²) |
|---|---|
| 1 ha | 10,000,000,000 mm² |
| 2 ha | 20,000,000,000 mm² |
| 3 ha | 30,000,000,000 mm² |
| 4 ha | 40,000,000,000 mm² |
| 5 ha | 50,000,000,000 mm² |
| 6 ha | 60,000,000,000 mm² |
| 7 ha | 70,000,000,000 mm² |
| 8 ha | 80,000,000,000 mm² |
| 9 ha | 90,000,000,000 mm² |
| 10 ha | 100,000,000,000 mm² |
| 12 ha | 120,000,000,000 mm² |
| 15 ha | 150,000,000,000 mm² |
| 20 ha | 200,000,000,000 mm² |
| 25 ha | 250,000,000,000 mm² |
| 30 ha | 300,000,000,000 mm² |
| 40 ha | 400,000,000,000 mm² |
| 50 ha | 500,000,000,000 mm² |
| 60 ha | 600,000,000,000 mm² |
| 70 ha | 700,000,000,000 mm² |
| 75 ha | 750,000,000,000 mm² |
| 80 ha | 800,000,000,000 mm² |
| 90 ha | 900,000,000,000 mm² |
| 100 ha | 1,000,000,000,000 mm² |
| 150 ha | 1,500,000,000,000 mm² |
| 200 ha | 2,000,000,000,000 mm² |
| 250 ha | 2,500,000,000,000 mm² |
| 500 ha | 5,000,000,000,000 mm² |
| 1,000 ha | 10,000,000,000,000 mm² |
Going the other way? See the square millimeters to hectares chart.
About the units
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.
Square Millimeter (mm²)
A square millimeter is one millionth of a square meter. Wire cross-sections are often given in square millimeters.
Frequently asked questions
How many square millimeters are in a hectare?
There are 10,000,000,000 square millimeters in a hectare.
How many hectares are in a square millimeter?
There are 1 × 10⁻¹⁰ hectares in a square millimeter.
How do you convert hectares to square millimeters?
To convert hectares to square millimeters, multiply the number of hectares by 10,000,000,000.
What is 5 hectares in square millimeters?
5 hectares equals 50,000,000,000 square millimeters.
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.