Unit definitions

Square foot

The square foot is the area of a square with sides measuring $1\ \text{ft}$.

Square kilometer

The square kilometer is the area of a square with sides measuring $1$ kilometer. A square kilometer is equal to $1\,000\,000$ square meters ($10^6\ \text{m}^2$).

How to convert Square foot to Square kilometer

$$\text{Area}_{\text{km²}} = \text{Area}_{\text{ft²}} \cdot 9.290304e - 8$$

Examples

Example 1

Convert $25.0\ \text{ft²}$ to $\text{km²}$.

$$\text{Area}_{\text{km²}} = 25.0 \cdot 9.290304e - 8$$

$$\text{Area}_{\text{km²}} = 0.000002$$

$$\therefore \ 25.0\ \text{ft²} = 0.000002 \ \text{km²}$$

Example 2

Convert $80.0\ \text{ft²}$ to $\text{km²}$.

$$\text{Area}_{\text{km²}} = 80.0 \cdot 9.290304e - 8$$

$$\text{Area}_{\text{km²}} = 0.000007$$

$$\therefore \ 80.0\ \text{ft²} = 0.000007 \ \text{km²}$$

Example 3

Convert $120.0\ \text{ft²}$ to $\text{km²}$.

$$\text{Area}_{\text{km²}} = 120.0 \cdot 9.290304e - 8$$

$$\text{Area}_{\text{km²}} = 0.000011$$

$$\therefore \ 120.0\ \text{ft²} = 0.000011 \ \text{km²}$$

Example 4

Convert $140.0\ \text{ft²}$ to $\text{km²}$.

$$\text{Area}_{\text{km²}} = 140.0 \cdot 9.290304e - 8$$

$$\text{Area}_{\text{km²}} = 0.000013$$

$$\therefore \ 140.0\ \text{ft²} = 0.000013 \ \text{km²}$$

Example 5

Convert $195.0\ \text{ft²}$ to $\text{km²}$.

$$\text{Area}_{\text{km²}} = 195.0 \cdot 9.290304e - 8$$

$$\text{Area}_{\text{km²}} = 0.000018$$

$$\therefore \ 195.0\ \text{ft²} = 0.000018 \ \text{km²}$$

Square foot to Square kilometer conversion table

Square foot to Square kilometer conversion table

Square foot [ft²]	Square kilometer [km²]
1	9.290304E-8
2	1.8580608E-7
3	2.7870912E-7
4	3.7161216E-7
5	4.645152E-7
6	0.000001
7	0.000001
8	0.000001
9	0.000001
10	0.000001

Convert Square foot to other Area units

Convert Square foot to other Area units

Square foot [ft²]	Other unit
1	0.092903 Square meter [m²]
1	0.000929 Are [a]
1	0.000009 Hectare [ha]
1	0.000023 Acre [ac]
1	144 Square inch [in²]
1	0.111111 Square yard [yd²]