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Circle Area Calculator

r

(radius)

units

Area (A)

square units

CopyView Calculation

How to use this Circle Area Calculator 🤔

1. Enter ✎ value for radius (r).
2. As soon as you enter the required input value(s), the Circle Area is calculated immediately, and displaed in the output section (present under input section).

Formula

To calculate the circle area, you can use the following formula.

\(A = \) \(π r ^2\)

where

Calculation

Once you enter the input values in the calculator, the output parameters are calculated.

{
  "topic": "circle-area",
  "img": {
    "width": 246,
    "height": 246
  },
  "input_types": [
    "float"
  ],
  "input_labels": [
    "r"
  ],
  "input_values": [
    "8"
  ],
  "input_units": [
    "units"
  ],
  "input_descriptions": [
    "radius"
  ],
  "examples": [
    {
      "r": 5
    },
    {
      "r": 1
    }
  ],
  "type": "Calculate",
  "title": "Circle Area",
  "category": "Geometry",
  "shape": "Circle",
  "formula_mathjax": "\\(π r ^2\\)",
  "formula_mathjax_sub": "\\(π \\times r ^2\\)",
  "formula": "Math.PI * ( r ** 2)",
  "op_label": "Area",
  "output_unit": "square units",
  "explanation": "The area of a circle is defined as the area enclosed in the circular shape."
}