Keep proportions perfect
An aspect ratio is the relationship between width and height (like 16:9 for widescreen video). Enter your ratio and one dimension, and the tool calculates the other so your image or video never looks stretched or squashed. Handy presets cover the most common ratios.
Common ratios
- 16:9 — YouTube, TVs, most video
- 1:1 — Instagram square posts
- 4:3 — classic photos, older screens
- 21:9 — ultrawide / cinematic
- 9:16 — vertical (Reels, TikTok, Stories)