How to determine the size of wallpaper you require?

How to determine the size of wallpaper you require?

For example,  if your wall height is 3 meters (300cm), the width is  5 meters (500cm), add an extra 0.05m on both height and width when you calculate.

To convert cm to meters you divide by 100

i.e. Area:  (3+0.05)m X  (5+0.05)m=15.403 Square meters. 

Therefore, you need to purchase 16 square meters.