Square kilometres to Square centimetres Converter

Convert square kilometres (km²) to square centimetres (cm²) instantly. Area conversions are everyday maths in Singapore property: HDB flats are listed in square metres while condo listings and PSF prices use square feet.

Result

Square centimetres
10,000,000,000 cm²

How to use the square kilometres to square centimetres converter

  1. Enter the square kilometres (km²).
  2. The results update as you type, or press Calculate.
  3. Read the square centimetres first, then the supporting figures below it.

Formula

Square centimetres = square kilometres × 1.000000e+10

Worked example

For example, with these inputs:

the calculator returns:

Square kilometres to Square centimetres table

Square kilometresSquare centimetres
1 km²10,000,000,000 cm²
2 km²20,000,000,000 cm²
5 km²50,000,000,000 cm²
10 km²100,000,000,000 cm²
20 km²200,000,000,000 cm²
25 km²250,000,000,000 cm²
50 km²500,000,000,000 cm²
100 km²1.000000e+12 cm²
250 km²2.500000e+12 cm²
500 km²5.000000e+12 cm²
1,000 km²1.000000e+13 cm²

About this conversion

Area conversions are everyday maths in Singapore property: HDB flats are listed in square metres while condo listings and PSF prices use square feet.

Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.

Writing the units next to every number while you work is the simplest way to avoid mistakes. If the units do not cancel to leave the one you want, the calculation is set up wrongly.

Frequently asked questions

How many square centimetres are in one square kilometre?

1 km² = 10,000,000,000 cm².

How do I convert km² to cm²?

Square centimetres = square kilometres × 1.000000e+10.

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