TV Size Calculator

Convert TV Inches to Width and Height in cm

TV sizes such as 55-inch and 65-inch refer to the diagonal screen size. This calculator assumes a common 16:9 screen and converts inches into width, height, and diagonal length in centimeters. Use it before buying a TV to check whether the screen fits your TV stand, wall space, shelf, or living room layout.

Compare 32, 55, 65, and Other Common Sizes

Quick buttons for 32, 40, 43, 50, 55, 65, 75, and 85 inches make it easy to compare popular sizes. Desks and smaller rooms often start around 32 to 43 inches, living rooms commonly compare 50 to 65 inches, and larger rooms may evaluate 75 inches or more. If you also need to understand room size in tatami, square meters, or tsubo, use the [Tatami Converter](/en/calc/tatami-converter/).

Treat Viewing Distance as a Guideline

The tool shows viewing distance estimates for Full HD (1080p), 4K (2160p), and 8K (4320p) based on screen height. It uses approximately 3x screen height for Full HD, 1.5x for 4K, and 0.75x for 8K. The comfortable distance still depends on eyesight, room brightness, content type, and manufacturer guidance, so use the result as a planning reference rather than a fixed rule.

Estimate Inches from Available Width

In "cm to Inches" mode, enter the available width to estimate a suitable diagonal size. This helps when a shelf or wall niche is measured in centimeters but product listings are written in inches. For ratio checks, use the [Aspect Ratio Calculator](/en/data/aspect-ratio-calculator/). For running costs, use the [Appliance Electricity Cost Calculator](/en/calc/electricity-usage-calculator/).