In case you intend to buy a TV online, you are most likely comparing features such as 4K resolution, smart features, and stylish designs. However, most people overlook one small step in the process of purchasing– not measuring the screen size properly. Without this, you can end up with a television that is either too small to match the size of your wall or too large to fit into the media unit.

Calculating the size of your TV screen is quite simple and won't cost you more than a few minutes, which saves you a lot of unnecessary time and trouble after buying.

Why Screen Size Isn’t Just a Number

When you are browsing the internet for TV online shopping, the screen size may seem like basic information, but it is a key to a good viewing experience. To have the TV in your room, living room or home theatre, the size of the screen should be according to the size of the room and the distance between the TV and you. 

Viewing a very large TV may strain your eyes. A small one may lack the cinematic touch you want to achieve. The perfect fit is not only physical but also visual, which comes from the perfect measurements.

Step-by-Step: How to Measure Your TV Screen Size

You should first understand how to measure your existing TV or space before we get into the topic of the best TV to buy.

Note: TV screen size is described diagonally–one visible corner of the screen to the opposite corner (not including the bezels).

Step 1: Measure the Diagonal of the Screen

These are the dimensions indicated on the product listing. Use a tape measure, starting at the top-left to the bottom-right of the display without including the frame. For example:

  • When your tape measures 109 cm (43), then that is your screen size.

  • In case it states 139 cm (55) - see for that while shopping.

This is your magic number that you need to remember during your online TV purchase.

Step 2: Measure Overall Dimensions

This comprises the bezels and body that are essential when doing the wall mounts or custom furniture.

Use this table to measure your TV's dimensions - 

Measurement Type

Where to Measure From

Example (109 cm screen)

Screen Diagonal

Visible screen only

109 cm (43)

TV Width

Left bezel to right bezel

97 cm

TV Height

Bottom bezel to top bezel

56 cm

TV Depth

Front to back (thickness)

7.5 cm

This can be a great help, particularly in case you are purchasing a luxury Television set and desire that ideal and snug fit to the wall.

Step 3: Understand Viewing Distance

The distance between you and your TV will influence the size that will suit you. Here’s the quick reference - 

Viewing Distance

Ideal Screen Size

120–150 cm

81–101 cm (32–40)

150–200 cm

109–127 cm (43–50)

200–250 cm

139–165 cm (55–65)



A Sansui TV with a size of 109 cm (43) may be suitable in the middle-sized homes and provides a good, tangible picture without filling up your living space.

Tips to Match TV Size with Your Room

When you consider a few important factors, picking the right size becomes easy. These are shopping tips you need to remember when doing TV online shopping

  • Measure from where you will be seated to where the TV will be fixed.

  • Check the space on the walls and decide whether the TV will be mounted or go on a stand.

  • Consider furniture clearance-you do not want cables or edges obstructed.

  • Ensure that the centre point of the TV is at eye level when sitting.

These processes are important when buying a Sansui LED TV as these televisions have a slim frame and streamlined shape suitable for both wall mounting anda  TV stand. 

Also Read - TV Size Guide: Find the Perfect House Fit

Don’t Forget to Check the Port and Mounting Positions

Before making your online TV purchase, make sure to flip the TV around and check- 

  • HDMI, USB, and power port locations

  • Wall mount compatibility (VESA mount sizes)

  • The weight capacity of your wall bracket/piece of furniture

In the Sansui LCD TV, all these aspects are thoughtfully placed to satisfy users, although it is a good idea to confirm them beforehand. 

Quick Measurement Checklist 

And here is your ready-to-use checklist before you press the now button - 

  • The diagonal screen is measured in cm. 

  • Total width, height and depth measured. 

  • Seating distance and room space verified

  • Wall-mounted or table stand determined

  • Port and cable access checked

These checks are important when choosing the best TV to buy. Purchasing a TV from a reputable brand such as Sansui TV ensures you don’t waste money on a model that does not fit your space.

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