Square meters to square kilometers

square kilometers = square meters × 0.000001

Reverse: square kilometers to square meters

How to convert square meters to square kilometers

One square meter is 0.000001 square kilometers, so multiply the number of square meters by 0.000001. For example, 20 square meters is 20 × 0.000001 = 0.00002 square kilometers. To go back, divide by the same number, or multiply by 1,000,000.

Quick estimate

Multiplying by about 0.000001 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 meters	square kilometers
1 m2	0.000001 km2
2 m2	0.000002 km2
3 m2	0.000003 km2
4 m2	0.000004 km2
5 m2	0.000005 km2
6 m2	0.000006 km2
7 m2	0.000007 km2
8 m2	0.000008 km2
9 m2	0.000009 km2
10 m2	0.00001 km2
11 m2	0.000011 km2
12 m2	0.000012 km2
13 m2	0.000013 km2
14 m2	0.000014 km2
15 m2	0.000015 km2
16 m2	0.000016 km2
17 m2	0.000017 km2
18 m2	0.000018 km2
19 m2	0.000019 km2
20 m2	0.00002 km2
25 m2	0.000025 km2
30 m2	0.00003 km2
40 m2	0.00004 km2
50 m2	0.00005 km2
60 m2	0.00006 km2
70 m2	0.00007 km2
75 m2	0.000075 km2
80 m2	0.00008 km2
90 m2	0.00009 km2
100 m2	0.0001 km2
120 m2	0.00012 km2
150 m2	0.00015 km2
200 m2	0.0002 km2
250 m2	0.00025 km2
300 m2	0.0003 km2
400 m2	0.0004 km2
500 m2	0.0005 km2
750 m2	0.00075 km2
1,000 m2	0.001 km2
1,500 m2	0.0015 km2
2,000 m2	0.002 km2
5,000 m2	0.005 km2
10,000 m2	0.01 km2

Questions

How many square kilometers are in a square meter?

0.000001 square kilometers.

How do I convert square meters to square kilometers in a spreadsheet?

Put the value in A1 and type =A1*0.000001, 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.