How Big Is a 42 Inch TV? Dimensions, Viewing Distance & Room Fit
A 42-inch TV sits in an interesting spot — it was one of the most popular TV sizes during the HDTV boom of 2008–2015, but most manufacturers have since shifted to 43" as their standard "medium" size. Today, 42" is primarily associated with one standout product: the LG OLED C-series. Here are the exact dimensions and everything you need to know about fitting a 42" TV in your space.
42 Inch TV: Exact Dimensions
All dimensions below are for a standard 16:9 aspect ratio display:
| Measurement | Inches | Centimeters | Feet |
|---|---|---|---|
| Screen Width | 36.6" | 93.0 cm | 3.05 ft |
| Screen Height | 20.6" | 52.3 cm | 1.72 ft |
| Total Width (with bezel) | ~37.8" | ~96.0 cm | ~3.15 ft |
| Total Height (with stand) | ~24.5" | ~62.2 cm | ~2.04 ft |
| Stand Depth | ~8.5" | ~21.6 cm | ~0.71 ft |
| Wall Mount Depth | 2.4–3.1" | 6.1–7.9 cm | 0.2–0.26 ft |
| Weight | — | — | 17–23 lbs (7.7–10.4 kg) |
A 42" TV is about the same width as a typical office desk (36–42 inches wide). It fits comfortably on a dresser or small media console and wall-mounts neatly in a bedroom without overpowering the space.
Viewing Distance for a 42 Inch TV
Sitting too close causes eye strain; too far means you lose picture detail. Here are the recommended distances:
| Resolution | Minimum Distance | Recommended Range | Maximum Comfortable |
|---|---|---|---|
| 1080p (HD) | 5.5 ft (1.7 m) | 5.5–8 ft (1.7–2.4 m) | 9 ft (2.7 m) |
| 4K (UHD) | 2.75 ft (0.84 m) | 4–5.25 ft (1.2–1.6 m) | 9 ft (2.7 m) |
Note: Most 42" TVs sold today are 4K, but at 42" and typical bedroom viewing distances (6–8 ft), the resolution advantage of 4K over 1080p is subtle. The benefit is more relevant if you sit very close (4–5 ft), such as using the TV as a large desktop monitor.
How a 42 Inch TV Compares to Nearby Sizes
| TV Size | Width | Height | Screen Area | vs 42" |
|---|---|---|---|---|
| 40 inch | 34.9" (88.6 cm) | 19.6" (49.8 cm) | 684 sq in | −10% area |
| 42 inch | 36.6" (93.0 cm) | 20.6" (52.3 cm) | 754 sq in | — |
| 43 inch | 37.5" (95.3 cm) | 21.1" (53.6 cm) | 792 sq in | +5% area |
| 50 inch | 43.6" (110.7 cm) | 24.5" (62.2 cm) | 1,068 sq in | +42% area |
The 42" is nearly identical to the 43" — only 0.9 inches narrower. If you are shopping new, a 43" TV gives you far more model options at the same size. The jump from 42" to 50" is significant (+42% screen area) and worth considering if your room supports it.
Room Placement Guide
A 42" TV works best in these settings:
- Bedroom (10×10 to 12×14 ft): The most natural fit. Wall-mount above a low dresser or place on a media stand. Ideal viewing distance in a bedroom is typically 6–8 ft, which is perfect for 42".
- Guest room or small living area: Great for secondary viewing spaces where a large TV would feel overwhelming.
- Kitchen or dining area: Works well if mounted at 8+ ft viewing distance.
- Office monitor: The LG 42" OLED is increasingly used as a premium large desktop monitor — at 42" and desk distance (2.5–4 ft), it is essentially a giant 4K display with perfect blacks.
The Special Case: LG 42" OLED
The LG C-series OLED is one of the few new TVs available in 42". The LG C4 42" OLED (launched 2024) is a remarkable product — a self-emissive OLED panel with perfect blacks, 120Hz refresh rate, HDMI 2.1 ports, and G-Sync/FreeSync support. It is as popular as a gaming monitor and desktop TV as it is as a bedroom television. At around $900–$1,100 retail, it is a premium but competitive option for the 42" category.
For most buyers seeking a 42" TV, the choice is essentially: LG 42" OLED (premium) or a 43" from any major brand (budget to mid-range). Both sizes look nearly identical in a room.
Should You Get a 42 Inch TV?
A 42" TV makes sense if you need a compact TV for a bedroom or secondary room, or if you want the LG 42" OLED specifically. For general shopping, a 43" gives you more options at every price point with the same visual footprint. If you are considering 42" vs 50", the 50" is worth a look if your room has 7+ feet of viewing distance — the extra 8" of screen area is substantial. Use Easy Compare to see exactly how a 42", 43", or 50" TV would look in your space.