The diameter of the circle is equal to 2 times the square root of the area divided by Pi.
So, divide the area of the circle by Pi (you’ll need a scientific calculator for this). Find the square root of that number and then multiply it by 2.
Example:
1. Divide the area (in square units) by Pi (approximately 3.14159). Example: 303,000/3.14159 = 96447.98.
2. Take the square root of the result (Example: 310.56). This is the radius.
3. Now double the radius to get the diameter (Example: 621.12 meters).
