Summary
In comparison to a 45 inch 21x9 TV a 42 inch 16x9 is...16% larger diagonally and 35% larger by area as a 16x9 display.
16% larger diagonally and 35% larger by area as a 4x3 display.
Screen Size Comparison
42 inch 16x9 display vs 45 inch 21x9 display
| Buy From | 42 inch 16x9 | 45 inch 21x9 | |
| Amazon | 42 Inch TV | 45 Inch TV | |
| StatsUse cm | 42 inch 16x9 | 45 inch 21x9 | |
| Width | 36.61 inches | 41.36 inches | |
| Height | 20.59 inches | 17.73 inches | |
| Area | 753.76 inches² | 733.19 inches² | |
| As a 4:3 Display | 34.32 inches | 29.54 inches | |
| As a 16:9 Display | 42.00 inches | 36.16 inches | |
| As a 2.35:1 Display | 39.78 inches | 44.95 inches | |
| In Comparison | 42 inch 16x9 | 45 inch 21x9 | |
| Actual Aspect Ratios | 6.67% smaller diagonal 2.81% larger area | 7.14% larger diagonal 2.73% smaller area | |
| As a 4:3 Display | 16.16% larger diagonal 34.93% larger area | 13.91% smaller diagonal 25.89% smaller area | |
| As a 16:9 Display | 16.16% larger diagonal 34.93% larger area | 13.91% smaller diagonal 25.89% smaller area | |
| As a 2.35:1 Display | 11.50% smaller diagonal 21.67% smaller area | 12.99% larger diagonal 27.67% larger area | |
| Share your Comparison | 42 inch 16x9 display vs 45 inch 21x9 display |