Square meters are a unit of area measurement commonly used in many countries around the world. One square meter is defined as the area of a square with each side measuring one meter in length. This measurement is useful for determining the size of rooms, buildings, and land plots. In practical terms, square meters help people understand how much space they have. For example, a small apartment might be around 50 square meters, while a larger house could be 150 square meters or more. Knowing the area in square meters allows for better planning and utilization of space.