Convert 1 Square Mile to Acre (1 sq mi to ac)
Need to convert 1 Square Mile (sq mi) to Acre (ac)? You're in the right place! On this page, you'll find the exact conversion of 1 sq mi to ac along with a detailed explanation, reverse formula, related tools, and frequently asked questions.

Result: 1 square mile is equal to 640 acre
Need to convert 1 Square Mile (sq mi) to Acre (ac)? You're in the right place! On this page, you'll find the exact conversion of 1 sq mi to ac along with a detailed explanation, reverse formula, related tools, and frequently asked questions.
1 Square Mile to Acre Conversion Details
The square mile (sq mi) and acre (ac) are both units of area. To convert between them, a precise conversion factor is required.
Square Mile to Acre Conversion Formula
One square mile is equal to 640 acre.
Manual Calculation to Convert 1 sq mi to ac
To convert 1 square mile to acre, multiply the value by the conversion factor: 640. As one square mile is equal to 640 acre, therefore,
1 sq mi x 640 = 640 acre
So, 1 square mile = 640 acre
Explore More on Square Mile and Acre
This page covers only the specific case of 1 sq mi to acre. For other conversions, try our general tool:
Frequently Asked Questions
What is 1 square mile in acre?
1 sq mi is equal to 640 acre.
How much is 1 sq mi to 1 acre?
1 sq mi to acre = 640 acre.
What is the value of 1 sq mi into acre?
There are 640 acre in 1 square mile.
How to calculate 1 sq mi to acre?
1 square mile is equivalent to 640 acre.
How big is 1 sq mi in acre?
There are 640 acre in 1 square mile.
What area is 1 square mile in acre?
1 square mile = 640 acre.
What is 1 square mile in area?
1 square mile is equal to 640 acre.
How much is 1 sq mi in acre?
640 acre is the result if we convert 1 sq mi to acre.