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Convert cho to square kilometer

Here you can quickly calculate how many square kilometer fit in one cho.
  • 1 cho = 0.009917 km²
  • 1 km² = 100.833333 cho

Cho to square kilometer conversion table

cho square kilometer
1 0.009917
2 0.019835
5 0.049587
10 0.099174
20 0.198347
50 0.495868
100 0.991736

Formula to convert cho to square kilometer

To convert cho to square kilometer, multiply by 0.009917.

1 cho = 0.009917 km²
Example: 1 cho = 0.009917 square kilometer

Common mistakes

  • 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.

Quick cho to/from square kilometer conversion quiz

Score: 0

18.5 square kilometer equals 3.73e+3 cho.

Correct answer: 18.5 square kilometer = 1.87e+3 cho.

171 cho equals 1.02 square kilometer.

Correct answer: 171 cho = 1.7 square kilometer.

15.7 cho equals 0.234 square kilometer.

Correct answer: 15.7 cho = 0.156 square kilometer.

20.9 square kilometer equals 2.11e+3 cho.

Correct answer: 20.9 square kilometer = 2.11e+3 cho.

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