TV Viewing Distance & Screen Size Calculator
Determine the perfect TV or projector screen size for your room dimensions based on THX (36°) and SMPTE (30°) viewing angle optics.
TV & Projector Screen Distance Calculator
SMPTE (30°/40° FOV) & THX cinema angular resolution distance solver.
For a 65" 4K TV, the THX recommended viewing distance is 6.5 feet (2.0 meters).
TV & Projector Screen Size Directory
Explore optimal THX (36° field of view) and SMPTE viewing distance calculations across popular display sizes.
Immersion Optics Rating
THX & SMPTE Field of View
Display Optics Setup
Screen Size & Resolution
Viewing Distance Optics
Calculated Physical Distances
Optics & Visual Acuity
1-Arcminute Resolution Limit
Human visual acuity limit is 1/60th of a degree (1 arcminute). Sitting closer than the 4K acuity threshold unlocks full resolve of individual pixels.
How To Run This Display Test (01, 02, 03)
Preparation
Clean your monitor surface, disable ambient light sensors, and set your display to native resolution and refresh rate.
Execution
Enter full-screen mode (F11) and use the diagnostic suite controls to progress through the test patterns.
Evaluation
Observe anomalies from different viewing angles in a dark room. Reference our testing guides to interpret your results.
Panel Technology Breakdown
Superior color accuracy and viewing angles. Used in reference monitors. Prone to minor 'IPS Glow' in dark environments.
High refresh rates and good response times for gaming, but lower static contrast ratios compared to VA.
Excellent deep blacks and high contrast (3000:1+). Often used in curved displays. Can exhibit 'black smearing' in fast motion.
Self-lit pixels deliver true black, near-instant response times, and infinite contrast. Subject to Auto Brightness Limiting (ABL).
TV Viewing Distance FAQs
Everything you need to know about this diagnostic instrument, calibration procedures, and display technical standards.