🗺️ Square Miles to Square Chains Converter

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Converted Value
6,400

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

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⚡ Square Miles to Square Chains: the quick answer

1 mi² = 6,400 ch² 1 square mile equals 6,400 square chains

To convert square miles to square chains, multiply the value by 6,400. To go the other way, multiply square chains by 0.00015625 to get square miles.

↔ Convert square chains to square miles instead

🧮 Formula

Square Miles to Square Chains
ch² = mi² × 6,400
Square Chains to Square Miles
mi² = ch² × 0.00015625

Where

  • mi² = the area in square miles
  • ch² = the area in square chains
Every unit here is defined by its area in square meters, so the conversion factor is (square meters per square mile) ÷ (square meters per square chain).

📊 Square Miles to Square Chains conversion table

Square Miles (mi²)Square Chains (ch²)
1 mi²6,400 ch²
2 mi²12,800 ch²
5 mi²32,000 ch²
10 mi²64,000 ch²
20 mi²128,000 ch²
50 mi²320,000 ch²
100 mi²640,000 ch²
500 mi²3,200,000 ch²
1,000 mi²6,400,000 ch²

✏️ Worked examples

Convert 25 square miles to square chains

25 mi² × 6,400 = 160,000 ch²

Try this example →

Convert 250 square miles to square chains

250 mi² × 6,400 = 1,600,000 ch²

Try this example →

📘 About these units

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

Square chain (ch²). A square chain is 484 square yards, one tenth of an acre.

❓ Frequently asked questions

How many square chains are in one square mile?

There are 6,400 square chains in one square mile.

How do I convert square miles to square chains?

Multiply the number of square miles by 6,400. For example, 10 square miles equal 64,000 square chains.

How many square miles are in one square chain?

One square chain equals 0.00015625 square miles.

What people are saying
★★★★★
Anonymous · 04 Oct 2026