Image
Aspect Ratio Calculator
- Browser-based
- No signup
- Stays on your device
- Your file is processed in your browser and is not uploaded to our servers.
Enter width and height to get a simplified ratio (for example 16:9), a decimal ratio, common ratio names, and optional scaled dimensions for a target width or height.
100% Client-Side
Your data never leaves your computer.
How to use this tool
1. Enter the original width and height in pixels (or any consistent unit). 2. Optionally enter a target width or height to scale while keeping the ratio. 3. Click Calculate. 4. Review the simplified ratio and scaled dimensions in the results panel. 5. Use the output when resizing images or video frames. Processing runs in your browser.
Worked example
Example: 1920×1080 simplifies to 16:9; entering a target width of 1280 px yields a height of 720 px.
How it works
Enter width and height in any unit. The calculator simplifies the ratio with the greatest common divisor, names common ratios like 16:9, and can scale to a target width or height while keeping the same proportions.
Limitations
Results are based on the inputs you provide and may not cover every edge case. This tool is for general use and is not professional advice.
Privacy and file handling
Your data is processed in your browser and is not uploaded to our server.
Frequently asked questions
How is the ratio simplified?
Width and height are divided by their greatest common divisor, so 1920×1080 becomes 16:9.
Is the Aspect Ratio Calculator free to use?
Yes. Utilnivo tools are free to use and do not require an account.
Are my inputs stored?
Utilnivo does not require an account. See the privacy note on this page for how your data is processed for this tool.
How do I get started with Aspect Ratio Calculator?
Open the tool on this page, enter your inputs, and use the on-screen controls. No account is required.
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