Summary
In comparison to a 21 inch 16x9 TV a 18 inch 4x3 is...21% smaller diagonally and 38% smaller by area as a 16x9 display.
5% larger diagonally and 10% larger by area as a 4x3 display.
Screen Size Comparison
18 inch 4x3 display vs 21 inch 16x9 display
| Buy From | 18 inch 4x3 | 21 inch 16x9 | |
| Amazon | 18 Inch TV | 21 Inch TV | |
| StatsUse cm | 18 inch 4x3 | 21 inch 16x9 | |
| Width | 14.40 inches | 18.30 inches | |
| Height | 10.80 inches | 10.30 inches | |
| Area | 155.52 inches² | 188.44 inches² | |
| As a 4:3 Display | 18.00 inches | 17.16 inches | |
| As a 16:9 Display | 16.52 inches | 21.00 inches | |
| As a 2.35:1 Display | 15.65 inches | 19.89 inches | |
| In Comparison | 18 inch 4x3 | 21 inch 16x9 | |
| Actual Aspect Ratios | 14.29% smaller diagonal 17.47% smaller area | 16.67% larger diagonal 21.17% larger area | |
| As a 4:3 Display | 4.90% larger diagonal 10.04% larger area | 4.67% smaller diagonal 9.12% smaller area | |
| As a 16:9 Display | 21.32% smaller diagonal 38.10% smaller area | 27.10% larger diagonal 61.56% larger area | |
| As a 2.35:1 Display | 21.32% smaller diagonal 38.10% smaller area | 27.10% larger diagonal 61.56% larger area | |
In comparison to a 21 inch 16x9 TV a 18 inch 4x3 is...
21% smaller diagonally and 38% smaller by area as a 16x9 display.
5% larger diagonally and 10% larger by area as a 4x3 display.
| Share your Comparison | 18 inch 4x3 display vs 21 inch 16x9 display |