Square Miles and Acres Converter
Use this calculator to convert square miles (mi²) to acres (ac) and acres to square miles. This converter is part of the full area converter tool.
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Converting acres and square miles
In the conversion tables below, figures are rounded to a maximum of 5 decimal places (7 with smaller numbers) to give approximations.
|1 acre||0.00156 square miles|
|2 acres||0.00313 square miles|
|3 acres||0.00469 square miles|
|4 acres||0.00625 square miles|
|5 acres||0.00781 square miles|
|6 acres||0.00938 square miles|
|7 acres||0.01094 square miles|
|8 acres||0.0125 square miles|
|9 acres||0.01406 square miles|
|10 acres||0.01563 square miles|
|11 acres||0.01719 square miles|
|12 acres||0.01875 square miles|
|13 acres||0.02031 square miles|
|14 acres||0.02188 square miles|
|15 acres||0.02344 square miles|
|16 acres||0.025 square miles|
|17 acres||0.02656 square miles|
|18 acres||0.02813 square miles|
|19 acres||0.02969 square miles|
|20 acres||0.03125 square miles|
|1 square mile||640 acres|
|2 square miles||1280 acres|
|3 square miles||1920 acres|
|4 square miles||2560 acres|
|5 square miles||3200 acres|
|6 square miles||3840 acres|
|7 square miles||4480 acres|
|8 square miles||5120 acres|
|9 square miles||5760 acres|
|10 square miles||6400 acres|
|11 square miles||7040 acres|
|12 square miles||7680 acres|
|13 square miles||8320 acres|
|14 square miles||8960 acres|
|15 square miles||9600 acres|
|16 square miles||10240 acres|
|17 square miles||10880 acres|
|18 square miles||11520 acres|
|19 square miles||12160 acres|
|20 square miles||12800 acres|
How many square miles are there in 1 acre?
There are 0.0015625 square miles in 1 acre. To convert from acres to square miles, multiply your figure by 0.0015625 (or divide by 640) .
How many acres are there in 1 square mile?
There are 640 acres in 1 square mile. To convert from square miles to acres, multiply your figure by 640 (or divide by 0.0015625) .
What is an acre?
The acre is a unit of land commonly employed within North America and the Caribbean. It is equal to 4,047 square metres or 43,560 square feet. This measurement is roughly equivalent to 40 per cent of a hectare. Interestingly enough, the acre can trace its roots back to mediaeval times. It was defined as the area that could be ploughed in a single day with the help of an ox. One acre is approximately 76 per cent the size of a football field. Many suburban lots are between one-quarter and one-fifth of an acre in size. You can find out more about acres in the article, how big is an acre?
What is a square mile?
Used within the United States and many other parts of the world, the square mile is one of the most common forms of measuring the area of land. It is defined as a square whose sides are each equivalent to one mile in length. One square mile is the same size as 2.59 square kilometers. There are 640 acres found within one square mile. One acre is somewhat approximated to the size of a football pitch. Aerial mapping, satellite imagery and global positioning systems will often employ square miles.
Other individual area converters
Ares and Acres, Cents and Acres, Hectares and Acres, Square Centimeters and Acres, Square Feet and Acres, Square Inches and Acres, Square Kilometers and Acres, Square Meters and Acres, Square Miles and Acres, Square Miles and Square Centimeters, Square Miles and Square Feet, Square Miles and Square Kilometers, Square Miles and Square Meters, Square Rods and Acres, Square Yards and Acres,