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Room Size Calculator

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An online Room size calculator allows you to calculate the total area of a room. After setting the unit of measurement put the required dimensions in our room area calculator and complete the calculation in a fraction of a second.

Room Size Formula: 

The following formula can be used by the room calculator to determine the floor area with all dimensions. If the surface is complex in shape it is possible to section the surface with the help of the following formula:

Area in sq. ft.= Length (in feet) x Width (in feet) + Add percentage waste area

How To Calculate Room Size?

If you are looking to install new carpet or flooring in the room definitely, you will need to know how big is my bedroom is. To calculate the square feet of a room start by measuring the length and width of the room in feet or meters. 

Enhance your understanding by looking for a glance at the given practical example below. 


Suppose in the house the most beautiful bedroom is 12 feet wide and 12 feet long. 

The total area of a room = 12 * 12 = 144 sqft

If you have an “L” shaped room and the process of calculating the size demands a little bit of thinking but you can make your calculation process easy and fast with the room size calculator m2.        

                                  room size         

Split the dimensions of a room into proper sections and treat each as a separate area. In the end, you can add the totals to get the size of the room. If your measurements are in different units then you can use our feet and inches to make the calculations possible. 

Working of Room Size Calculator:

Use our fast and online room dimensions calculator to get the correct square footage you need to order your flooring! With this tool, you can easily calculate size of room in a few simple steps. Connect to the below points. 


  • Chose the unit of the measurement 
  • Enter the length and the width of the room
  • Put their expected wastage 
  • Tap “Calculate”


Our room dimension calculator will give you the following answer. 

  • Area of a room in corresponding units 
  • Step-by-step calculations  


How To Measure Multiple Spaces With a Room Size Calculator?

When your project consists of different projects or unidimensional rooms and you want to identify how to find room dimensions online. Their procedure of calculation is quite simple, divide the project into a particular number of sections and add the area of each into the room measurement calculator m2 to get the total square footage of the project. 

What Is The Standard Room Size?

The standard size of the room depends on the geographic location of the house. Identify, the room size with the area of a room measurements calculator. In general, the standard rooms in a house have the following dimensions. 




            22 X 28 feet

            16 X 20 feet

              12 X 18 feet

        6.71 X 8.53 meter

          4.88 X 6.1 meter

          3.66 X 5.49 meter


From the source Wikipedia: Single room occupancy, More expensive units.

From the source Tutorialstipscivil: Standard room calculations, How big is my room?