A square meter is very basically speaking a square where each side is 1 meter long; so it will be 1m x 1m. This would be one square meter, but to work out the size of something in square meters you need to do a very simple calculation.

To find out the size of something, for example a room, in square meters you need to measure the length of the room and the width (obviously if the room is square the length and width should be the same but just make sure). Once you have these measurements you simply need to times one by the other. So here is an example to show you how it would look in real life:

You have a square room, which you need to buy carpet for. The width and length of the room are the same, since it is square, with both measuring 4 meters. To find out how much carpet to buy you would do the simple sum below:

Length (4m) x Width (4m) = total (16m squared). You would therefore need to buy a roll of carpet, which is 16 meters squared.

This is a very simple calculation and can be used in the same way for other four-sided shapes such as a rectangle. When using this same technique with a rectangle it is even more important that you make sure the width and length are carefully measured as rectangles have two very different measurements for length and width. The accuracy of this measurement will affect the whole sum (if measuring for a carpet or tiles, this kind of mistake can prove very costly).

To find out the size of something, for example a room, in square meters you need to measure the length of the room and the width (obviously if the room is square the length and width should be the same but just make sure). Once you have these measurements you simply need to times one by the other. So here is an example to show you how it would look in real life:

You have a square room, which you need to buy carpet for. The width and length of the room are the same, since it is square, with both measuring 4 meters. To find out how much carpet to buy you would do the simple sum below:

Length (4m) x Width (4m) = total (16m squared). You would therefore need to buy a roll of carpet, which is 16 meters squared.

This is a very simple calculation and can be used in the same way for other four-sided shapes such as a rectangle. When using this same technique with a rectangle it is even more important that you make sure the width and length are carefully measured as rectangles have two very different measurements for length and width. The accuracy of this measurement will affect the whole sum (if measuring for a carpet or tiles, this kind of mistake can prove very costly).