Square Yards to Square Miles
An instant square yards-to-square miles converter, with the formula and a reference table below.
| Square Yards | Square Miles |
|---|---|
| 1 yd² | 3.22831e-07 mi² |
| 2 yd² | 6.45661e-07 mi² |
| 3 yd² | 9.68492e-07 mi² |
| 5 yd² | 1.61415e-06 mi² |
| 10 yd² | 3.22831e-06 mi² |
| 25 yd² | 8.07076e-06 mi² |
| 50 yd² | 1.61415e-05 mi² |
| 100 yd² | 3.22831e-05 mi² |
How to use
- Enter a value in the Square Yards field.
- The Square Miles figure appears immediately — no button to press.
- Typing in the Square Miles field converts back to Square Yards the same way.
- Use the reference table for the values that come up most often.
Square Yards to Square Miles formula
To convert square yards to square miles, multiply by 3.22830579e-07.
mi² = yd² × 3.22830579e-07
Why this factor: the square yard and the square mile are both defined against the square meter, so dividing one definition by the other gives 3.22830579e-07 directly. Both definitions are set out in full below.
To go the other way, divide by 3.22830579e-07 — or use the Square Miles to Square Yards converter, which is the same calculation reversed.
Worked example
Take 50 yd² and multiply by the factor 3.22830579e-07: the result is 1.61415e-05 mi².
50 yd² × 3.22830579e-07 = 1.61415e-05 mi²
The converter above does this for any value you type, in either direction.
What is a square yard?
A square yard is the area of a one-yard square — nine square feet.
Definition: Exactly 0.83612736 square meter, following from the exact 0.9144 m yard.
Where it is used: Carpet, turf and paving quantities in the US and UK.
What is a square mile?
A square mile is the area of a one-mile square, used for large land areas in the US and UK.
Definition: Exactly 2,589,988.110336 square meters, and exactly 640 acres.
Where it is used: County, state and metropolitan areas, and population density in the US.
Square Yards vs Square Miles
The square yard and the square mile belong to the same family of units, so converting between them is usually a matter of shifting a decimal point or applying a small whole-number factor.
Frequently asked questions
How many square miles are in a square yard?
One square yard equals 3.22830579e-07 square miles.
What is the formula to convert square yards to square miles?
Multiply the number of square yards by 3.22830579e-07. To reverse it, divide by 3.22830579e-07 instead.
How do I convert square miles back to square yards?
Divide by 3.22830579e-07, which is the same as multiplying by 3097600.
How many square miles are in 10 square yards?
10 yd² works out to 3.22831e-06 mi².
How is the square yard defined?
Exactly 0.83612736 square meter, following from the exact 0.9144 m yard.