Convert square kilometers to square centimeters

1 km² = 10,000,000,000 cm². Change the amount below, or read the formula and the reference table further down.

1 square kilometer equals

10,000,000,000square centimeters

1 km² = 10,000,000,000 cm²

The formula

Square kilometers and square centimeters both measure area from the same zero, so a single multiplier does the job.

cm² = km² × 10,000,000,000

Going the other way? Convert square centimeters to square kilometers.

Square kilometers to square centimeters table

Common values, rounded for reading.

Square kilometers (km²)Square centimeters (cm²)
110,000,000,000
220,000,000,000
330,000,000,000
440,000,000,000
550,000,000,000
660,000,000,000
770,000,000,000
880,000,000,000
990,000,000,000
10100,000,000,000
15150,000,000,000
20200,000,000,000
25250,000,000,000
30300,000,000,000
40400,000,000,000
50500,000,000,000
75750,000,000,000
1001,000,000,000,000
2502,500,000,000,000
5005,000,000,000,000
1,00010,000,000,000,000

Questions people ask

How many square centimeters are in a square kilometer?
One square kilometer equals 10,000,000,000 square centimeters.
How do I convert square kilometers to square centimeters by hand?
Multiply the number of square kilometers by 10,000,000,000. For a rough check, 10,000,000,000 is close enough for most everyday use.
What is 1 square kilometer in square centimeters?
1 square kilometer is 10,000,000,000 square centimeters.

Calcuit generates this page from a unit table, so the factors here match every other page on the site.

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