Aspect Ratio Calculator
Design ToolsSimplify ratios and resize keeping proportions
Embed this tool on your websiteFree
- Choose how tall the frame should be.
- Press Copy code.
- Paste it into your page, blog, WordPress or Notion HTML block.
The tool runs inside your visitor's browser, nothing is uploaded, and a small "Powered by ToolCloak" line stays under it. The second line (script) is optional: it makes the frame fit the tool's height.
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History
All history →Aspect Ratio Calculator — at a glance
Find the aspect ratio of any width and height (like 16:9) and calculate the matching height or width when you resize an image or video.
How to use it — step by step
The width and height of your image or video.
Enter your values
Fill in the boxes. Sample values are already there so you can see how it works.
Calculate
Press the button to get your answer instantly.
Read the result
The main answer is shown in a large card with extra details below it.
Copy it
Use the copy button to save the result anywhere.
Pro tips
Small things that make the result better.
Quick facts
Frequently Asked Questions
What is 1920×1080 as a ratio?+
16:9, the standard widescreen ratio.
Is my data safe?+
Yes. Everything runs inside your own browser. Your text, files and images are never uploaded to any server.
Is this tool really free?+
Yes — completely free, no signup, no watermark and no usage limit.