Wallpaper Calculator - Calculate for a room or simply one feature wall

Drawing of tape measure and calculator

How to calculate how many rolls of wallpaper you need

Do you need to convert feet to metres first? Use our feet to metres converter below.

  1. Measure the height of the room, in metres e.g (2.4), measuring from the coving/cornice or ceiling to the top of the skirting boards. Enter this figure into the Wall height in the calculator below.
  2. Now measure the perimeter of the room, in metres, including windows and doors. Enter this figure into the Room perimeter in the calculator below.
  3. Once you have entered both your numbers into the calculator below, press the calculate button for the results. This calculator gives an estimate and allows for an additional 10% for wastage.

To see what the wallpaper symbols mean on the rolls of wallpaper or in the wallpaper books, see our wallpaper symbols page.

You may find this blog post about How to Wallpaper of interest.

Calculate wallpaper rolls required

Convert Feet to Metres converter

If you need to firstly convert feet to metres input you rounded up (e.g. 8 not 7'6) measurement into the feet box below and press the convert button. You can then use the resulting figure of metres in the wallpaper calculator.

Feet to Metres converter

Disclaimer: Calculations based on UK standard roll sizes; 10.05m by 0.53m. This calculator should be used as an approximate guide only. Patterned papers may vary the number of rolls required. We can take no responsibility for over or under ordering.

What people are saying about our wallpaper calculator

Much better than other sites that are in feet,will use again” ::Very easy to use::Excellent - thanks for sharing” ::Absolutely brilliant:: “Only one i found online that was easy to use and did not lie” ::Very quick and easy to use:: “Thanks, v useful indeed” :: “Found the calculator very helpful and easy to use:: “The simplest calculator I found:: “We only want to do one wall and the other sites are very confusing” :: “Other calculators drove me crackers. This one is great!:: “Very good, 1st one to give me correct measurement.::Easy to use. Thanks” :: “Easy to use, very useful unlike some other sites that assume you want to paper all four walls.” ::Very handy to the novice/DIY decorator:: “Your calculator makes life easier:: “Very helpful I will use this converter all the time now.” ::Brilliant, Simple, straight forward to use. Thanks.” right quote

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