Calculadora de Metragem Quadrada
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
A = l × c
About this calculator
The Square Meter Calculator computes the area of a rectangular or square space in square meters (m²). Simply enter the width and length in meters, and the tool multiplies the two values to obtain the total area. For example, a room 5 meters wide by 4 meters long has 20 m².
This calculator is useful for everyday situations such as planning the purchase of flooring, tiles, paint, or wallpaper. It also helps estimate the size of land, rooms, or construction areas. The calculation is instant and prevents manual errors.
When using it, remember that the formula only works for rectangular or square shapes. For irregular areas, you need to divide them into rectangular sections and sum the results. Also, ensure measurements are in the same unit (meters) to avoid discrepancies.
Another caution: square meterage does not consider height or volume. It is a measure of surface area. If you need to calculate volume (e.g., concrete), multiply the area by the height. This tool is only for flat, two-dimensional areas.
Frequently asked questions
How do I calculate square footage of an irregular room?
Divide the room into rectangular sections, calculate each area, and sum them. This calculator only works for rectangles or squares.
Do I need to convert centimeters to meters before using?
Yes, the calculator expects values in meters. If your measurements are in centimeters, divide by 100 before entering.
Is square meterage the same as floor area?
Yes, for a rectangular room, the floor area equals the calculated square meterage. Account for waste when buying materials.
Can I use this calculator for land?
Yes, as long as the land is rectangular or square. For irregular shapes, consult a professional.
What does m² mean?
m² is short for square meter, a unit of area in the metric system. It equals the area of a square with 1-meter sides.