Convert square foot to cho

Here you can quickly calculate how many cho fit in one square foot.

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Example: square foot to cho

Starting value Increment Accuracy

To convert square foot to cho, multiply by 0.000009.

1 ft² = 0.000009 cho

Example: 1 square foot = 0.000009 cho

Converting square meters to square feet needs the squared factor: 1 m is 3.281 ft, so 1 m² is 3.281² ≈ 10.76 sq ft. Using 3.28 directly turns a 100 m² apartment into '328 sq ft' instead of the correct ~1,076 sq ft.
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

1 square foot equals 1.87e-6 cho.

Correct answer: 1 square foot = 9.37e-6 cho.

25 square foot equals 0.000234 cho.

Correct answer: 25 square foot = 0.000234 cho.

1 square foot equals 9.37e-6 cho.

Correct answer: 1 square foot = 9.37e-6 cho.