45 inch TV dimensions
How big is a 45 inch TV really? Width, height and diagonal, the right viewing distance and the room size you need – and how it looks on your own wall.
Dimensions
39.2" × 22"
45" Diagonal
Viewing Distance
Daily
5.6 ft
Immersive (Cinema)
4.5 ft
Ideal Room Size
205 sq ft
(min. 140 sq ft)

Technical Specifications
Dimensions
With Frame: ~40" × 23"
(Without Frame (Screen): 39.2" × 22")
Viewing Distance
The optimal distance between you and the TV for a perfect viewing experience.
For 4K Resolution:
For Full HD Resolution:
Room Requirements
These room sizes are ideal for a 45 inch TV.
Minimum Room Size
140 sq ft
Ideal Room Size
205 sq ft
Ceiling Height (min)
7.5 ft
Ideal For
A 45 inch TV fits perfectly in these rooms and use cases.
Additional Information
Resolution
Minimum Resolution:
Full HD (1920x1080)
Recommended Resolution:
4K UHD (3840x2160)
Weight
Typically:
15–24 lbs
Power Consumption
Typical:
60 W
Maximum:
90 W
Frequently Asked Questions
How big is a 45 inch TV?
A 45 inch TV has a screen diagonal of 45". It is about 39.2" wide and 22" tall (without frame).
What is the best viewing distance for a 45 inch TV?
For 4K (standard on all current TVs), 5.6 ft is ideal for everyday viewing and 4.5 ft for a more cinematic feel (sensible range: 3.7 ft to 5.6 ft). For Full HD, 7.5 ft is optimal (range: 5.6 ft to 9.4 ft).
What room size is a 45 inch TV suitable for?
A 45 inch TV suits rooms from 140 sq ft. Ideal are rooms of 205 sq ft or more.
What resolution should a 45 inch TV have?
At least Full HD (1920x1080), recommended is 4K UHD (3840x2160). At this size, you will benefit significantly from the higher resolution.
How big is a 45 inch TV compared to other sizes?
- A 45 inch TV is 1.7" wider and 1" taller than a 43 inch TV – 10% more screen area.
- Compared with a 48 inch TV it is 2.6" narrower and 1.5" shorter; the 48 inch TV has 14% more screen area.
Will it fit on your TV stand?
Including the bezel, a 45 inch TV is about 40" wide. If it stands on furniture, the stand should be at least 44" wide – a bit more if the feet sit at the outer edges.
Wall mount: VESA and weight
A 45 inch TV typically uses a VESA pattern of 200 × 200 – 300 × 300 mm and weighs 15–24 lbs. Make sure the wall mount covers both – the exact values are in your TV's manual.
How high to mount a 45 inch TV?
With a seated eye height of 42", the bottom edge of a 45 inch TV sits at about 31" from the floor and the top edge at about 53".
Calculate the height for your room →Compare with Other Sizes
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