🗺️ Square Miles to Chō (Japan) Converter

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Converted Value
65,289.3

Also available in our Android app, with charts and full breakdown tables.

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⚡ Square Miles to Chō (Japan): the quick answer

1 mi² = 261.157 chō 1 square mile equals 261.157 chō (Japan)

To convert square miles to chō (Japan), multiply the value by 261.157. To go the other way, multiply chō (Japan) by 0.00382911 to get square miles.

↔ Convert chō (Japan) to square miles instead

🧮 Formula

Square Miles to Chō (Japan)
chō = mi² × 261.157
Chō (Japan) to Square Miles
mi² = chō × 0.00382911

Where

  • mi² = the area in square miles
  • chō = the area in chō (Japan)
Every unit here is defined by its area in square meters, so the conversion factor is (square meters per square mile) ÷ (square meters per chō (Japan)).

📊 Square Miles to Chō (Japan) conversion table

Square Miles (mi²)Chō (Japan) (chō)
1 mi²261.157 chō
2 mi²522.314 chō
5 mi²1,305.79 chō
10 mi²2,611.57 chō
20 mi²5,223.14 chō
50 mi²13,057.9 chō
100 mi²26,115.7 chō
500 mi²130,579 chō
1,000 mi²261,157 chō

✏️ Worked examples

Convert 25 square miles to chō (Japan)

25 mi² × 261.157 = 6,528.93 chō

Try this example →

Convert 250 square miles to chō (Japan)

250 mi² × 261.157 = 65,289.3 chō

Try this example →

📘 About these units

Square mile (mi²). A square mile is 640 acres (2.58999 km²).

Chō (Japan) (chō). A chō is 3,000 tsubo (9,917.36 m²), almost exactly one hectare. Used in: Asia — Japan, Korea & Taiwan.

❓ Frequently asked questions

How many chō (Japan) are in one square mile?

There are 261.157 chō (Japan) in one square mile.

How do I convert square miles to chō (Japan)?

Multiply the number of square miles by 261.157. For example, 10 square miles equal 2,611.57 chō (Japan).

How many square miles are in one chō (Japan)?

One chō (Japan) equals 0.00382911 square miles.

What people are saying
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Anonymous · 04 Oct 2026