Aspect Ratio Calculator
Simplify dimensions to a ratio, solve a missing dimension, browse common resolutions, and compute letterbox bars. All math runs locally.
Ratio from dimensions
16:9
= 1.7778 : 1
16:9 (widescreen)
Solve a missing dimension
All four fields are linked: edit the ratio or width and the height updates; edit the height and the width updates.
Common resolutions for this ratio
| Resolution | Width | Height | Megapixels |
|---|---|---|---|
| 1280 × 720 | 1280 | 720 | 0.9 MP |
| 1600 × 900 | 1600 | 900 | 1.4 MP |
| 1920 × 1080 | 1920 | 1080 | 2.1 MP |
| 2560 × 1440 | 2560 | 1440 | 3.7 MP |
| 3840 × 2160 | 3840 | 2160 | 8.3 MP |
Letterbox / pillarbox calculator
Fit content of one size into a container of another (preserving aspect ratio) and get the scaled size plus bar thickness.
Scaled content size
1920 × 800
scale factor 0.5
Letterbox (bars top and bottom)
140 px top and bottom