How Big is a 70 Inch TV? Complete Dimensions in CM with Setup & Buying Guide

Introduction: Why 70 Inch TV Dimensions in CM Matter

When upgrading your entertainment setup, screen size is the first thing everyone notices. A 70-inch TV offers cinematic immersion, but before buying, you need to understand its exact dimensions in CM. Why? Because accurate measurements help you plan wall space, seating distance, and even delivery through doorways.

In this guide, we’ll break down 70 Inch TV Dimensions in CM, compare it with other popular sizes, cover mounting, space planning, sound setup, and answer common questions — all in one detailed resource.


Exact 70 Inch TV Dimensions in CM

The diagonal measurement of a 70-inch TV equals 177.8 cm. But that’s only half the story. What really matters is the actual width and height.

  • Width: 177.8 cm
  • Height: 100.3 cm
  • Aspect Ratio: 16:9 (standard for movies, sports, and streaming)
  • Active Display Area: ~155.2 cm × 87.3 cm (screen only, without bezel)
  • Total Body (with bezel): ~160.5 cm × 92.7 cm

👉 In short, when people ask “How big is a 70 Inch TV in CM?”, the answer is 177.8 × 100.3 cm, but expect slight variations by brand.


📊 Comparison Table: TV Sizes vs Dimensions

TV SizeWidth (cm)Height (cm)Area Difference vs 70″
55 inch135.9 cm76.7 cm62% smaller
65 inch160.7 cm90.5 cm27% smaller
70 inch177.8 cm100.3 cmReference size
75 inch188 cm106 cm12% bigger
85 inch210 cm118 cm35% bigger

This table proves why 70 Inch TV Dimensions in CM are ideal: large enough for immersion, but not as overwhelming as 85 inches.


Depth & Thickness of a 70-Inch TV

A flat-screen’s depth matters for mounting and space. Different technologies affect thickness:

  • OLED TVs: 2.5–3.8 cm (ultra-thin)
  • QLED TVs: 3.8–7.6 cm
  • LED TVs: 6.3–10.1 cm

Even slim OLEDs have a thicker bottom area for processors, so always check official specs.


Space Planning Guidelines

When positioning a 70-inch TV:

  • Leave 10 cm clearance on all sides for ventilation.
  • Recommended viewing distance: 2.4–3.6 meters (8–12 feet).
  • Seating height: TV should be at eye level when seated.
  • Check doorways (91 cm standard width) before delivery — a 70-inch TV can pass when carried vertically.

💡 Tip: Use a cardboard template matching the 70 Inch TV Dimensions in CM to test wall placement before installation.


Mounting & Weight Considerations

How Big is a 70 Inch TV
  • Weight Range: 22–32 kg without stand
  • Always use a VESA-compatible mount supporting at least 1.5× the TV’s weight
  • Mount types:
    • Fixed (cheapest, slim profile)
    • Tilting (reduces glare)
    • Full-Motion (flexible viewing angles)
  • Professional installation is strongly recommended

Smart Features to Look For in 70-Inch TVs

A big screen is only as good as its features. Most modern 70-inch TVs include:

  • Resolution: Minimum 4K UHD, some with 8K
  • Refresh Rate: 120Hz for gaming & sports
  • Connectivity: HDMI 2.1 ports, Wi-Fi, Bluetooth
  • Voice Control: Alexa, Google Assistant, or Siri
  • Streaming Apps: Netflix, Prime, Disney+, YouTube pre-installed

Sound System & Audio Planning

Built-in speakers rarely do justice to a 70 Inch TV Dimensions in CM setup. Options include:

How Big is a 70 Inch TV
  • Soundbars: Require 7–10 cm clearance below TV
  • Surround Systems: 5.1 or Dolby Atmos for true cinema feel
  • Mounts with Soundbar Brackets: Keep setup clean and minimal

Gaming & Entertainment Setup

For gamers, features matter more than size:

  • HDMI 2.1 ports for 4K/120Hz gaming
  • Input lag under 20ms ensures fast response
  • VRR (Variable Refresh Rate) and ALLM (Auto Low Latency Mode)
  • HDR compatibility for lifelike visuals

Lighting & Room Considerations

A 70-inch screen can reflect glare easily. To optimize:

  • Avoid placing opposite windows
  • Use smart bias lighting behind the TV to reduce eye strain
  • Install curtains or blinds for daytime viewing

Temperature & Ventilation

Large TVs generate heat. For safe usage:

  • Maintain room temperature between 20–25°C
  • Never enclose in a tight cabinet without airflow
  • Use surge protectors to avoid voltage damage

Long-Term Ownership Tips

  • Warranty: Always register your TV
  • Cleaning: Use microfiber cloth only
  • Energy Use: OLEDs generally consume less power than LEDs
  • Furniture: Ensure stands and cabinets can handle ~30 kg safely

Frequently Asked Questions (FAQs)

1. What are the exact 70 Inch TV Dimensions in CM?
Width = 177.8 cm, Height = 100.3 cm, Aspect Ratio = 16:9.

2. Can a 70-inch TV fit through a standard door?
Yes. Most doors are 91 cm wide; the TV’s vertical height is ~87 cm.

3. How much does a 70-inch TV weigh?
Usually 22–32 kg without the stand.

4. What is the best viewing distance?
Around 2.4–3.6 meters (8–12 feet).

5. Is 70 inches too big for a small room?
If seating distance is under 2 meters, it may feel overwhelming.

6. Which is better: 65 vs 70 vs 75 inch?

  • 65″: Compact, affordable
  • 70″: Balanced, immersive
  • 75″: Larger, needs more space

Final Words

A 70-inch TV offers the perfect balance of size and practicality. With 177.8 × 100.3 cm dimensions, sleek depth, and smart features, it transforms your living room into a mini theater.

Just remember to:

  • Measure your room carefully
  • Use the correct mounting system
  • Plan for audio and lighting

When asked “How big is a 70 Inch TV in CM”, now you know — it’s not just about numbers, but about planning the ultimate entertainment experience.