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Circle - Area f(diameter)

vCalc Reviewed
`Area = pi * ( "d" /2)^2`
`(d) "Diameter of the Circle"`

The Area of a Circle from the Diameter formula computes the area of a circle based on the circle's diameter.

INSTRUCTIONS:  Choose units and enter the following:/attachments/25b41d0b-fa6a-11e5-9770-bc764e2038f2/circle(Diameter).png

  • (D) This is the diameter of the circle.

Circle Area (A):  The calculator returns the area in square meters.  However this can be automatically converted to compatible units via the pull-down menu.

The Math / Science

The formula for the area of a circle based on the diameter is:

           A = π•(D/2)²

where: