TV Size & Distance Calculator

Find the perfect viewing distance and compare TV sizes for your room.

Screen Size
Resolution
Optimal Viewing Distance

4.69.2 ft

(1.42.8 m)

For 55" 4K TV

80 PPI

Pixel Density

32°

Viewing Angle

TV Preview
55"

Width

47.9"

122 cm

Height

27.0"

68 cm

Pixels

8.3M

3840×2160

Aspect

16:9

Widescreen

Size Guide (4K)
SizeWidthHeightMin DistMax Dist
32"27.9"15.7"2.7 ft5.3 ft
43"37.5"21.1"3.6 ft7.2 ft
50"43.6"24.5"4.2 ft8.3 ft
55"47.9"27.0"4.6 ft9.2 ft
65"56.7"31.9"5.4 ft10.8 ft
75"65.4"36.8"6.3 ft12.5 ft
85"74.1"41.7"7.1 ft14.2 ft
Documentation

How It Works

Optimal viewing distance depends on both screen size and resolution. Higher resolution TVs can be watched closer without seeing individual pixels.

THX recommends 40° viewing angle for theatrical immersion, while SMPTE suggests 30° as the minimum. This calculator uses industry-standard multipliers scaled by resolution.

Screen Formulas

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Frequently Asked Questions
How to Use

About the TV Size Calculator

What it calculates

This tv size calculator provides quick everyday calculations for tips, discounts, passwords, and daily tasks. Find the optimal viewing distance for your TV size and resolution.

When to use it

Use whenever you need a fast answer without opening a spreadsheet.

Example

Adjust the inputs above to model your specific scenario with the TV Size Calculator.

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