Aspect Ratio Calculator
Find the aspect ratio of any size, or scale dimensions while keeping the ratio.
How it works
- 1Enter a width and height.
- 2Read the simplified ratio.
- 3Change one side to get the other.
Features
- Simplifies any size to its ratio.
- One-click presets for 16:9, 9:16, 4:3, 1:1 and 4:5.
- Runs instantly in your browser.
Frequently asked questions
What is an aspect ratio?
The proportional relationship between width and height, written as width:height, for example 16:9.
Which ratio is best for Shorts, Reels and TikTok?
9:16 vertical, typically 1080×1920 pixels.
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