The formula used to calculate the circle diameter is. This tool will calculate the area of a circle from the diameter and will convert different measurement units for diameter and area. Hence using d 2 radius 2 16 32 meters from the question gives us the area as A p.
To calculate diameter from the area divide area by pi value pi 227 or 314.
P is approximately equal to 314. Area of a circle in terms of diameter. O Circle diameter. Enter the diameter of a circle.