**Formula**:

The formula is:

$\text{GFA} = \text{A} \times \text{F}$

**Variables**

**Variable** |
**Meaning** |

GFA |
Gross Floor Area (total floor area of a building) |

A |
Area of each floor (the area of a single floor within the building) |

F |
Number of floors in the building |

**How to Calculate ?**

First of all, determine the area (A) of one floor in the building. Now, count the number of floors (F) in the building. Finally, multiply the area of one floor by the number of floors to calculate the Gross Floor Area (GFA).

### Solved Examples:

**Example 1:**

**Given**:

- Area of each floor (A) = 200 square meters
- Number of floors (F) = 5

**Calculation** |
**Instructions** |

**Step 1:** GFA = $A \times F$ |
Start with the formula. |

**Step 2:** GFA = $200 \times 5$ |
Replace A with 200 square meters and F with 5 floors. |

**Step 3:** GFA = 1000 square meters |
Multiply 200 by 5 to get the Gross Floor Area. |

**Answer**:

The Gross Floor Area is **1000 square meters**.

**Example 2:**

**Given**:

- Area of each floor (A) = 150 square meters
- Number of floors (F) = 10

**Calculation** |
**Instructions** |

**Step 1:** GFA = $A \times F$ |
Start with the formula. |

**Step 2:** GFA = $150 \times 10$ |
Replace A with 150 square meters and F with 10 floors. |

**Step 3:** GFA = 1500 square meters |
Multiply 150 by 10 to get the Gross Floor Area. |

**Answer**:

The Gross Floor Area is **1500 square meters**.

**What is the Gross Floor Area Calculator?**

The Gross Floor Area (GFA) Calculator is helpful to know the total floor area within a building, including all floors. It is an essential metric in real estate, construction, and urban planning, as it represents the overall usable space within a building.

**Final Words:**

In an era where optimizing space is key to sustainable development and efficient resource utilization, the Gross Floor Area Calculator is indispensable tool in construction, design and efficient planning. It is really helpful for architects and construction professionals for various purpose including property valuation, zoning compliance and efficient space utilization. $$