What is an Aspect Ratio?
An aspect ratio represents the proportional relationship between an image or video's width and height, expressed as two numbers separated by a colon (such as 16:9 or 4:3).
Using our Aspect Ratio Calculator Tool, you can calculate matching width or height values while preserving exact visual proportions.
Standard Industry Aspect Ratios
- 16:9 (Widescreen): Standard for YouTube videos, HDTVs, and computer monitors.
- 4:3 (Standard): Traditional format for older television broadcasts and photography.
- 1:1 (Square): Popular format for Instagram posts and profile avatars.
- 9:16 (Vertical): Standard for mobile TikTok, Instagram Reels, and YouTube Shorts.
How to Calculate Dimensions
- Navigate to the Aspect Ratio Calculator.
- Enter original width and height (e.g. 1920x1080).
- Type a new width (e.g. 1280) to auto-calculate matching height (720px).