2 cm² to ha — 2 square centimetres in hectares
Exact 2 ÷ 100,000,000 = 2e-8
2 square centimetres in other units
| Square millimetres | 200 | mm² |
|---|---|---|
| Square metres | 0.0002 | m² |
| Ares | 0.000002 | a |
| Hectares | 2e-8 | ha |
| Square kilometres | 2e-10 | km² |
| Square inches | 0.31000062 | in² |
| Square feet | 0.002152782083 | ft² |
| Square yards | 0.000239198009 | yd² |
| Acres | 4.9421e-8 | ac |
| Square miles | 7.722e-11 | mi² |
cm² to ha at a glance
| Square centimetres | Hectares |
|---|---|
| 1 cm² | 1e-8 ha |
| 2 cm² | 2e-8 ha |
| 3 cm² | 3e-8 ha |
| 5 cm² | 5e-8 ha |
| 10 cm² | 1e-7 ha |
| 20 cm² | 2e-7 ha |
| 25 cm² | 2.5e-7 ha |
| 50 cm² | 5e-7 ha |
| 100 cm² | 0.000001 ha |
| 250 cm² | 0.0000025 ha |
| 500 cm² | 0.000005 ha |
| 1,000 cm² | 0.00001 ha |
How to convert square centimetres to hectares
Multiply by 1e-8 — one square centimetre is 1e-8 hectares. That factor is exact: it comes from the definition of the units rather than from a measurement, so it will not change and does not need rounding.
Working 2 ÷ 100,000,000 = 2e-8
What these units are
The square centimetre and the hectare are covered in the area unit guide, along with every other unit on this page.
Questions
How many hectares are in a square centimetre?
One square centimetre is 1e-8 hectares. This figure is exact — it comes from the definition of the unit, not a measurement.
What is 2 square centimetres in hectares?
2 square centimetres is 2e-8 hectares. The working is 2 ÷ 100,000,000 = 2e-8.
How big is an acre, really?
About 4,047 square metres, or roughly 70 by 58 metres if it were square — though it rarely is. The traditional definition was one chain by one furlong, the strip a team of oxen could plough in a day, which is why it is a long thin shape rather than a round number.
How many acres in a hectare?
A hectare is about 2.47 acres. The hectare is the tidier unit: it is exactly 10,000 square metres, or a square 100 metres on each side. Most of the world quotes land in hectares and only the English-speaking countries still lean on the acre.
Why isn't a square foot 12 square inches?
Because area scales with the square of length. A foot is 12 inches, so a square foot is 12 × 12 = 144 square inches. The same catch doubles again for volume, where a cubic foot is 1,728 cubic inches.
What area is a football pitch?
There is no single answer, which is why it is a poor unit despite being a popular one. FIFA allows pitches between roughly 4,050 and 10,800 square metres, so "the size of a football pitch" can vary by a factor of more than two.