What aspect ratio means
Aspect ratio describes the relationship between width and height. A 16:9 design is wider than it is tall, while a 9:16 design is vertical. The ratio stays the same even when the pixel dimensions change.
Common creator ratios
Use 16:9 for YouTube videos and widescreen banners, 9:16 for Shorts/Reels/TikTok-style vertical video, 1:1 for square posts, and 4:5 when you want more vertical space in a feed layout.
How to resize without distortion
Change either width or height and calculate the matching dimension from the ratio. Avoid stretching assets manually because it can distort people, products, screenshots, and UI elements.
Planning reusable templates
Keep a few ratio-safe templates for common use cases. A single design system can include widescreen banners, vertical stories, square icons, and portrait feed posts without recreating every layout from scratch.
Common ratio examples
The ratio can stay the same while pixel size changes. Choose the ratio first, then calculate the exact export size.
16:9
1920 × 1080, 1280 × 720, YouTube and widescreen.
9:16
1080 × 1920, Shorts, Reels, TikTok, stories.
4:5
1080 × 1350, portrait social feed posts.