About the mi² to m² calculation
One square mile is exactly 2,589,988.11 square meters, so converting between them is a single multiplication. Enter any value above and the result updates as you type. Used for land and territory area in the US and UK. One square mile is exactly 640 acres. The standard unit for floor area in metric countries.
Formula
m² = mi² × 2,589,988.11
1 mi² = 2,589,988.11 m²
1 m² = 3.8610e-7 mi²Worked example
To convert 1 mi², multiply by 2,589,988.11: 1 × 2,589,988.11 = 2,589,988.11 m².
Frequently asked questions
How many square meters are in a square mile?
There are 2,589,988.11 square meters in one square mile. To convert any amount, multiply the number of square miles by 2,589,988.11.
How do I convert square meters back to square miles?
Divide instead of multiplying, or equivalently multiply by 3.8610e-7. One square meter is 3.8610e-7 square miles.
Is this conversion exact?
Yes. Since the international agreement of 1959, the relationship between square miles and square meters is defined exactly rather than measured, so the only rounding here is in how many decimal places we show.
Where is each of these units used?
Square Miles: used for land and territory area in the US and UK. One square mile is exactly 640 acres. Square Meters: the standard unit for floor area in metric countries.
Sources
- NIST Special Publication 811 — Guide for the Use of the International System of Units