TV & Monitor Viewing Distance Calculator
Find the optimal TV or monitor size for your viewing distance, or the distance for a given size, using THX and SMPTE viewing-angle guidelines plus 1080p/4K/8K pixel-visibility limits.
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What is TV & Monitor Viewing Distance Calculator?
A viewing distance calculator matches screen size to seating distance. It applies THX and SMPTE viewing-angle guidelines to 16:9 screens and adds pixel-visibility limits for 1080p, 4K and 8K panels, so you can go from couch distance to a recommended size range — or from a screen size to a seating plan.
Key Benefits
- Buy the right screen size for your room the first time
- Understand how much closer 4K and 8K let you sit than 1080p
- Avoid eye strain and wasted resolution with guideline-backed ranges
Common Use Cases
- •Choosing a TV size before a living-room or home-theater purchase
- •Laying out desk-to-monitor distance for a new workspace
- •Planning seating rows in a media room or presentation space
How to pick the right TV size
- Measure your seating distance: Pick the distance mode and enter how far your couch or desk sits from the screen, in meters.
- Choose the resolution: Select 1080p, 4K or 8K so the pixel-visibility limit matches the panel you plan to buy.
- Read the size range: Anything between the comfort minimum and the THX maximum works — pick based on budget and room aesthetics.
Key Features
- Two-way calculator: distance to size, or size to distance range
- THX 40°, SMPTE 30° and 20° comfort viewing-angle guidelines
- Pixel-visibility limits for 1080p, 4K and 8K via the 1-arcminute rule
- Results shown in inches with meters alongside
- Pure client-side math — no signup, no upload