km² → dm² converter

Convert square kilometers to square decimeter (Area)

1 km² = 100000000 dm² · 1 dm² = 0.00000001 km²

10 km² = 1e9 dm²

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Square kilometers to square decimeter Conversion

1 square kilometers (km²) is equal to 100000000 square decimeter (dm²).

1 km² = 100000000 dm²

or

1 dm² = 0.00000001 km²

Formula

To convert a area from square kilometers (km²) to square decimeter (dm²), multiply the area in square kilometers by 100000000

a(dm²) = a(km²) × 100000000

Examples:

Convert 10 square kilometers to square decimeter:

a(dm²) = 10km² × 100000000 = 1000000000 dm²

Conversion table

Square kilometers (km²) Square decimeter (dm²)
1 km² 100000000 dm²
2 km² 200000000 dm²
3 km² 300000000 dm²
5 km² 500000000 dm²
10 km² 1e9 dm²
20 km² 2e9 dm²
25 km² 2.5e9 dm²
50 km² 5e9 dm²
100 km² 1e10 dm²
250 km² 2.5e10 dm²
500 km² 5e10 dm²
1000 km² 1e11 dm²
Square decimeter (dm²) Square kilometers (km²)
1 dm² 1e-8 km²
2 dm² 2e-8 km²
3 dm² 3e-8 km²
5 dm² 5e-8 km²
10 dm² 1e-7 km²
20 dm² 2e-7 km²
25 dm² 2.5e-7 km²
50 dm² 5e-7 km²
100 dm² 1e-6 km²
250 dm² 2.5e-6 km²
500 dm² 5e-6 km²
1000 dm² 1e-5 km²

Frequently asked questions

How do I convert square kilometers to square decimeter?

Multiply the value in square kilometers by 100000000 to get the result in square decimeter. For example, 5 km² × 100000000 = 500000000 dm².

How many square decimeter are in 1 square kilometers?

1 square kilometers (km²) is equal to 100000000 square decimeter (dm²).

How do I convert square decimeter back to square kilometers?

Use the inverse operation: divide the value in square decimeter by 100000000 to get the result in square kilometers.

How accurate is the square kilometers to square decimeter conversion?

The converter multiplies by the conversion factor 100000000 and rounds the result to 9 decimal places by default. You can increase or reduce the precision with the digits option on this page.

Sources

Conversion factors are based on internationally recognised standards: