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Dimensions of a circle

Input data

Diameter (D)

Output data

Perimeter (P)

Area (A)

Description

Given the diameter, perimeter, or area of a circle, calculates the other two values.

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Calculation Methods

1. Given Diameter

Parameter
Default Units
Description
Diameter (D)
mm
Input: Circle's diameter
Perimeter (P)
mm
Output: Circle's perimeter
Area (A)
m²
Output: Circle's area

2. Given Perimeter

Parameter
Default Units
Description
Perimeter (P)
mm
Input: Circle's perimeter
Diameter (D)
mm
Output: Circle's diameter
Area (A)
m²
Output: Circle's area

3. Given Area

Parameter
Default Units
Description
Area (A)
m²
Input: Circle's area
Diameter (D)
mm
Output: Circle's diameter
Perimeter (P)
mm
Output: Circle's perimeter