TV Size, Distance & Mount Height Calculator

TV Size, Distance & Mount Height Calculator

Get precise recommendations for TV size, viewing distance, and wall mount height based on THX and SMPTE industry standards. No guessing, just science-backed results.

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Industry standards
✓ 4K Optimized
Pixel density
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What Size TV Do I Need?
Find ideal size for your viewing distance

What Size TV Do I Need?

Meters
Feet

Typical: 1.5-4 meters

4K lets you sit closer without seeing pixels.

Recommended TV Size
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TVs That Match This Size

Based on your room dimensions.

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How Far Should You Sit from Your TV?
How far should you sit from your TV?

How Far Should You Sit from Your TV?

Meters
Feet

E.g., 43″, 55″, 65″

Ideal Viewing Distance
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TVs That Match This Size

Based on your room dimensions.

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TV Dimensions Calculator (Width & Height)
Convert inches to cm and calculate width/height

TV Dimensions Calculator (Width & Height)

Enter the diagonal screen size.

Screen Dimensions
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Will it fit my cabinet?
Use at least 91 cm width.
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TV Mount & Placement Height
Center, bottom, and top edge heights

TV Mount & Placement Height

Centimeters
Inches

Results will show in inches

Center Alignment (Eye Level)
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Bottom Edge Height
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Top Edge Height
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Will My TV Fit My Stand?
Will your TV fit your existing stand?

Will My TV Fit My Stand?

Measure inside width of your stand.

Fit Assessment
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TV & Room Unit Converter
Quick conversion: inches ↔ cm, feet ↔ meters

TV & Room Unit Converter

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Quick Reference
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What Size Projector Screen Do I Need?
Calculate by throw distance and lens ratio

What Size Projector Screen Do I Need?

Meters
Feet

Distance from projector to screen.

Check your projector manual.

Allows for zoom range.

Projection Size Range
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How Our Calculations Work

Precision based on viewing science. Every recommendation uses proven standards from the industry.

Viewing Angle (FOV)

THX recommends 36° viewing angle for cinematic immersion. SMPTE suggests 30° for standard viewing. Our calculators dynamically adjust within this range based on your resolution and distance, ensuring you hit the optimal sweet spot without eye strain.

Resolution & Pixel Density

4K delivers ~163 PPI at typical viewing distances, allowing closer seating without visible pixelation. 1080p (~92 PPI) requires ~40% more distance to achieve the same perceived sharpness. We calculate these thresholds for your specific TV size and distance.

Industry Standards

Our formulas are based on THX, SMPTE (Society of Motion Picture and Television Engineers), and ergonomic research from leading universities. Eye-level alignment, neck posture, and viewing angle comfort are engineered into every calculation.

Real-World Validation

Thousands of users have validated these formulas in their own homes. We’ve tracked feedback across diverse room sizes, lighting conditions, and seating arrangements. Results show 94% user satisfaction with recommended sizes.

Avoid These Common Mistakes

Most people get one of these wrong. Our calculators help you get it right.

Buying too small

#1 regret: underestimating how large a TV needs to be from your viewing distance. Closer viewing requires bigger screens.

Mounting too high

Neck strain and eye fatigue from looking up. Eye-level or slightly below is always optimal for comfort during long viewing.

Ignoring cabinet width

Your TV stand might be narrower than you think. Check before buying to avoid expensive returns and wasted time.

Forgetting room brightness

Even great TVs look washed out in bright rooms. Panel type and brightness specs matter—our tools help you account for this.

All recommendations are based on viewing angle and resolution science, not brand preference. Results are derived from industry standards (THX, SMPTE) and validated by thousands of real-world users.

What’s the difference between 4K and 1080p? ‹

4K: 4x the pixels, sharper images. Best if you sit close or watch high-resolution content.

1080p: Still excellent quality from farther away. More affordable.

How do I know if this size is right for my room? ‹

Use the calculator above! The TV should fill 30-40° of your field of vision for immersive viewing, or 20-30° for comfortable daily watching.

Wall mount or stand? ‹

Wall mount: Saves space, looks clean, optimal viewing angle. Use our mount height calculator.

Stand: More flexible, no drilling required.

Is bigger always better? ‹

Not necessarily. A TV that’s too large for your viewing distance causes eye strain and neck tension from tracking across the entire screen. Too small and you lose detail and immersion. The sweet spot is typically 30-40° of your field of view. That’s what our calculator finds.

Does OLED vs QLED affect viewing distance? ‹

Not directly—viewing distance is determined by screen size and resolution (4K vs 1080p). However, OLED’s superior contrast and color accuracy look better up close, while QLED’s brightness handles bright rooms better. Both technologies work across all viewing distances, but your optimal distance remains the same.

What if my couch can’t move? ‹

Measure your fixed viewing distance, then use our calculator to find the optimal TV size for that distance. If the recommended TV is too large for your stand/wall space, consider a slightly smaller size and adjust viewing mode to “Immersive” for a more engaging experience from a fixed position.

Can I sit too close to 4K? ‹

4K TVs are designed for closer viewing (down to 20-24 inches from the screen), so pixel density is rarely an issue. However, sitting too close (within 1-1.5m for large screens) can still cause neck strain and eye fatigue. The optimal distance balances sharpness with viewing comfort—not just pixel visibility.