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How Far Should You Sit from Your TV?

Built by Kevin Glover · @gloverbuilds · Verified formula

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

In this article

Optimal Viewing Distance
Common Mistake

A Ciência

Para 4K: 1,0-1,5× a diagonal. TV 65" (165 cm): 1,65-2,50 m. A THX recomenda 36° de ângulo visual para imersão. Na prática: a maioria dos brasileiros senta mais longe que o ideal para sua TV.

Recomendações

2-2,5 m: 55-65". 2,5-3 m: 65-75". 3-3,5 m: 75-85". No Brasil, a tendência é TVs cada vez maiores — o tamanho médio vendido sobe todo ano.

⚡ 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

Distância para 65"?▾

4K: 1,65-2,50 m. Se seu sofá está a 3 m: considere 75".

Resolução importa?▾

4K importa mais de perto ou em tela grande. A 3+ m num 55": diferença quase invisível vs 1080p.

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Kevin Glover · @gloverbuilds

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 →