Convert square kilometer to square decimeter

Here you can quickly calculate how many square decimeter fit in one square kilometer.

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Conversion from square kilometer to square decimeter example

Starting value Increment Accuracy

To convert square kilometer to square decimeter, multiply by 100000000.

1 km² = 100000000 dm²

Example: 1 square kilometer = 100000000 square decimeter

A hectare is 10,000 m², a 100 × 100 m square, and one square kilometer holds 100 hectares. News stories about wildfires and land plots often mix the two up. Rule of thumb: a football pitch is roughly 0.7 hectares.
For areas the length factor must be squared, using it directly is the classic trap. 1 km is 1,000 m, but 1 km² is 1,000,000 m², and 1 m² is 10,000 cm². The rule: convert the length unit, then square the factor.

Score: 0

10 square decimeter equals 1.0e-8 square kilometer.

Correct answer: 10 square decimeter = 1.0e-7 square kilometer.

10 square kilometer equals 1.0e+10 square decimeter.

Correct answer: 10 square kilometer = 1.0e+9 square decimeter.

2 square decimeter equals 2.0e-8 square kilometer.

Correct answer: 2 square decimeter = 2.0e-8 square kilometer.

1 square kilometer equals 1.0e+8 square decimeter.

Correct answer: 1 square kilometer = 1.0e+8 square decimeter.