The Area of Box Calculator helps you calculate the surface area of both open and closed boxes based on their dimensions.

By inputting the box’s length, width, and height, along with selecting the box type (open or closed) and units of measurement, this calculator instantly determines the box’s surface area. It’s useful for packaging, construction, and design applications.

Area Of Box Calculator
**How to use the Calculator:**

- Select the
**Box Type** (open or closed).
- Enter the
**Length**, **Width**, and **Height** of the box.
- Choose the
**Measurement Units** for the results.
- Click
**Calculate** to view the **Surface Area** of the box and see the formula used.
- To clear inputs and start over, click
**Reset**.

**Calculations**

**Example 1: Open Box**

**Step** |
**Calculation** |

**Box Type** |
Open |

**Length** |
5 cm |

**Width** |
3 cm |

**Height** |
2 cm |

**Surface Area** |
(5 × 3) + (2 × 5 × 2) + (2 × 3 × 2) = **46 cm²** |

In this example, an open box with dimensions 5 cm by 3 cm by 2 cm has a surface area of 46 cm².

**Example 2: Closed Box**

**Step** |
**Calculation** |

**Box Type** |
Closed |

**Length** |
4 m |

**Width** |
2 m |

**Height** |
3 m |

**Surface Area** |
2 × (4 × 2) + 2 × (4 × 3) + 2 × (2 × 3) = **52 m²** |

For a closed box with dimensions 4 m by 2 m by 3 m, the surface area is calculated to be 52 m², providing an accurate measure for construction or packaging needs.