Square meter area calculator

Area calculator

Quick calculation of square meters (m²) and perimeter

Length (m)

Width (m)

Enter the length and width on the left
to calculate the area and see the shape

Total area:

0 m²

Length -

Width -

Perimeter -

Square meter area calculator

📏 Calculation of room area (m²) online

A simple tool for calculating the square footage of walls, floors or ceilings. Helps to know exactly the scope of work before renovating or purchasing real estate.

📝 Instructions: Enter length and width in meters (for example, 4.5 and 3.2). The calculator will instantly show the area.

Why is this calculation needed?

Knowing the exact area is the basis for any construction. We have selected tools for the following steps:

Больше по теме: Area of figures

Side/Hypotenuse📐 Pythagorean Theorem in action This calculator solves the main problem of geometry and construction: finding the unknown side of a right triangle if the other two are known. 💡 The formula is simple: c² = a² + b².

Figures📏 Instant calculation of the volume of geometric shapes Our tool helps calculate volume (capacity) for a wide variety of objects - from simple boxes to complex tanks.

Figures📐 Online calculation of perimeter (P) for any shapes The perimeter is the total length of the shape's border. Our calculator allows you to instantly calculate this value for 15+ geometric shapes: from a simple square to complex polygons.

Wall repair: Knowing the area, you can calculate the number of rolls using wallpaper calculator or the volume of paint.
Construction: If you are building walls, use the resulting area in calculation of building blocks (foam blocks, aerated concrete).
Purchasing materials: Always take materials with a reserve for trimming. interest calculator will help you calculate a 10-15% premium.

If your room is not rectangular (has ledges, niches or an L-shape), it is better to break it into parts or use the universal figure area calculator.

Frequently asked questions (FAQ)

🔹 How to convert centimeters to meters for calculation?

To correctly calculate the area in m², you need to enter data in meters. If you have measurements in centimeters, divide them by 100 (for example, 450 cm = 4.5 m). Or use our length converter.

🔹 What is “floor area” and “wall area”?

These are different concepts. Area of the floor is the length multiplied by the width of the room. The area of the walls is the perimeter of the room multiplied by the height of the ceilings (minus windows and doors).

🔹 Is it possible to calculate the area in feet or arshins?

This calculator works with the metric system. You will get the result in square meters. This is the standard for construction estimates in the Russian Federation.