Square centimeters to hectares

hectares = square centimeters × 1e-8

How to convert square centimeters to hectares

One square centimeter is 1e-8 hectares, so multiply the number of square centimeters by 1e-8. For example, 20 square centimeters is 20 × 1e-8 = 2e-7 hectares. To go back, divide by the same number, or multiply by 100,000,000.

Quick estimate

Multiplying by about 1e-8 gets within 0.0% of the exact answer, which is enough to check that a result makes sense.

Where it comes up

Area conversions come up when buying flooring, paint or turf, comparing house and flat sizes, and measuring land and gardens.

square centimeters	hectares
1 cm2	1e-8 ha
2 cm2	2e-8 ha
3 cm2	3e-8 ha
4 cm2	4e-8 ha
5 cm2	5e-8 ha
6 cm2	6e-8 ha
7 cm2	7e-8 ha
8 cm2	8e-8 ha
9 cm2	9e-8 ha
10 cm2	1e-7 ha
11 cm2	1.1e-7 ha
12 cm2	1.2e-7 ha
13 cm2	1.3e-7 ha
14 cm2	1.4e-7 ha
15 cm2	1.5e-7 ha
16 cm2	1.6e-7 ha
17 cm2	1.7e-7 ha
18 cm2	1.8e-7 ha
19 cm2	1.9e-7 ha
20 cm2	2e-7 ha
25 cm2	2.5e-7 ha
30 cm2	3e-7 ha
40 cm2	4e-7 ha
50 cm2	5e-7 ha
60 cm2	6e-7 ha
70 cm2	7e-7 ha
75 cm2	7.5e-7 ha
80 cm2	8e-7 ha
90 cm2	9e-7 ha
100 cm2	0.000001 ha
120 cm2	0.0000012 ha
150 cm2	0.0000015 ha
200 cm2	0.000002 ha
250 cm2	0.0000025 ha
300 cm2	0.000003 ha
400 cm2	0.000004 ha
500 cm2	0.000005 ha
750 cm2	0.0000075 ha
1,000 cm2	0.00001 ha
1,500 cm2	0.000015 ha
2,000 cm2	0.00002 ha
5,000 cm2	0.00005 ha
10,000 cm2	0.0001 ha

Questions

How many hectares are in a square centimeter?

1e-8 hectares.

How do I convert square centimeters to hectares in a spreadsheet?

Put the value in A1 and type =A1*1e-8, then fill the formula down the column.

Are the values in the table exact?

They are calculated from the exact definitions of the units and rounded only for display. Open any row for the full working.