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How Far Should You Sit from Your TV?

Calculate optimal viewing distance by TV size or find the ideal TV size for your room.

📅 Updated April 2026 ✅ Formula verified 📖 4 min read 🆓 Free · No sign-up

La Science

Pour 4K : 1,0-1,5× la diagonale. TV 165 cm (65") : 1,65-2,50 m. La THX recommande 36° d'angle visuel pour l'immersion cinématographique — ce qui correspond à s'asseoir plus près que la plupart des gens ne le pensent.

Tailles Recommandées

2-2,5 m : 140-165 cm (55-65"). 2,5-3 m : 165-190 cm (65-75"). 3-3,5 m : 190-215 cm (75-85"). La tendance : le TV moyen vendu augmente chaque année.

⚡ CalcWolf Insight

Samsung, LG, and Sony all recommend sitting 1.5x the screen diagonal for their 4K TVs. That puts a 65-inch TV at 8 feet — but most home theater experts (and the THX standard) say this is too conservative. 1.0-1.2x the diagonal gives a more cinematic, immersive experience that fully utilizes 4K resolution.

Frequently asked questions
Distance pour un 165 cm (65") ?▾
4K : 1,65-2,50 m. Si votre canapé est à 3 m : considérez un 190 cm (75").
La résolution compte-t-elle ?▾
4K importe surtout de près ou sur grand écran. À 3+ m sur un 140 cm : la différence 1080p/4K est invisible.
✓ Math logic verified against primary sources → See our verification process
Kevin Glover
Founder, CalcWolf · GLVTS · Blickr
All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →
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