What is the Aspect Ratio Calculator?
Enter a width × height (e.g. 1920x1080) and get the simplified aspect ratio and decimal — useful for sizing AI images and videos for Sora, Kling, TikTok and YouTube.
The tool is part of the Calabi free tools hub — a collection of 99+ browser-based utilities for developers, designers, and content creators. Everything runs client-side: your files and data never leave your device.
How to use the Aspect Ratio Calculator
- Step 1: Type dimensions as width x height.
- Step 2: Read the simplified ratio and decimal.
- Step 3: Match it to your platform's target (16:9, 9:16, 1:1).
The tool updates in real time as you interact with it. No button-clicking required for most tools — results appear instantly.
Example
1920x1080 → 16:9
Privacy & security
The Aspect Ratio Calculator is designed with privacy as a hard constraint, not an afterthought:
- No upload: Your data is processed in your browser's JavaScript engine. No HTTP request is made to any server while you use the tool.
- No account required: The tool works instantly — no email, no sign-up, no cookie consent wall.
- No logging: Calabi does not log what you paste, upload, or generate. The server only delivers the HTML/JS page — it never sees your content.
- Open to inspection: Open your browser's network inspector while using the tool. You'll see zero outbound requests related to your data.
This architecture is particularly important for the Converters category of tools, where the inputs often contain sensitive or proprietary information.
Frequently asked questions
Is the Aspect Ratio Calculator free?
Yes, completely free with no account required.
Does it upload my data?
No. The Aspect Ratio Calculator runs entirely in your browser — your data never leaves your device.
Will it work on mobile?
Yes. The tool works on any modern browser on desktop and mobile.
Can I use this for commercial purposes?
Yes, there are no restrictions on commercial use.
About Converters
The Aspect Ratio Calculator is part of the Converters category in the Calabi tools hub. Find the simplified aspect ratio of any width × height — great for AI video, images and screens. All tools in this category run entirely in your browser with no server involvement.