To calculate the surface area of a sphere, square the radius (**r²**), multiply it by Pi (**π**), and then multiply the result by 4. This will give you the total surface area of the sphere.

## Sphere Area Calculator

The **Sphere Area Calculator** is a useful tool for calculating the surface area of a sphere based on its radius or diameter. . This calculator provides simple and accurate results for different measurements, such as **square feet** or **square meters**.

Whether you’re working on a geometry problem, engineering task, or design project, the calculator helps you easily find the **area of a sphere** and related properties like circumference and volume.

**Formula:**

$A = 4 \pi r^2$

Variable | Meaning |
---|---|

A |
Surface area of the sphere |

r |
Radius of the sphere |

π |
Pi (approximately 3.14159) |

**Solved Calculations :**

**Example 1:**

**Given Values**:

**r**= 5 meters

Calculation | Instructions |
---|---|

A = 4π × (5)² | Square the radius. |

A = 4π × 25 | Multiply by Pi (π ≈ 3.14159). |

A ≈ 4 × 3.14159 × 25 | Perform the multiplication. |

A ≈ 314.16 square meters | The result gives the surface area of the sphere. |

**Answer**: A ≈ 314.16 square meters

**Example 2:**

**Given Values**:

**r**= 10 centimeters

Calculation | Instructions |
---|---|

A = 4π × (10)² | Square the radius. |

A = 4π × 100 | Multiply by Pi (π ≈ 3.14159). |

A ≈ 4 × 3.14159 × 100 | Perform the multiplication. |

A ≈ 1,256.64 square centimeters | The result gives the surface area of the sphere. |

**Answer**: A ≈ 1,256.64 square centimeters

**What is Sphere Area Calculator ?**

The formula to find the **surface area of a sphere** is **A = 4πr²**, where **r** represents the radius of the sphere. By using the **Sphere Area Calculator**, you can quickly input the radius or diameter and calculate the total surface area in units like **square feet** or **square meters**.

For example, this calculator can be used in geometry to solve problems or in construction to determine the surface area of spherical objects. The tool is particularly helpful when working with large or small spheres, ensuring you get precise results without needing manual calculations.

More**ove**r, this calculatorcan be used to calculate related properties, such as the **volume of a sphere** or the **circumference of a sphere**, by applying formulas like **V = 4/3πr³** for volume and **C = 2πr** for circumference.

Due to this, it is an ideal choice for everyone, from math homework to real-world projects that involve spherical objects. Whether you need to solve for a **partial sphere** or a **half sphere**, the calculator provides the necessary tools to handle complex geometric calculations efficiently.