TV Size Calculator
Find the right TV size: measure from your eyes to where the screen will be, and we do the geometry.
- Runs on your device
- No watermark
- Free, no signup needed
- Available offline
Where the numbers come from
How to use it
- Enter your numbers.
- Results update instantly.
- Adjust any value to compare scenarios.
Questions
What size TV should I get for 10 feet away?
About 75 inches for comfortable everyday viewing (SMPTE 30°), and up to about 100 inches for a cinema-like view (THX 40°).
How far should I sit from a 65-inch TV?
About 6.5 to 9 feet: 9 feet matches the SMPTE 30° guideline and 6.5 feet the more immersive THX 40°.
Is bigger always better?
Up to a point. The THX 40° angle fills your view like a cinema; beyond it you start moving your eyes and head to follow the action.
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