Aspect Ratio Calculator
Design ToolsSimplify ratios and resize keeping proportions
FreePrivateInstant
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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.
1920 × 1080
Run
16 : 9
How to use it — step by step
The width and height of your image or video.
1
Enter your values
Fill in the boxes. Sample values are already there so you can see how it works.
2
Calculate
Press the button to get your answer instantly.
3
Read the result
The main answer is shown in a large card with extra details below it.
4
Copy it
Use the copy button to save the result anywhere.
Pro tips
Small things that make the result better.
✦Common ratios: 16:9 video, 4:3 old screens, 1:1 Instagram, 9:16 Reels.
✦Fill only “new width” or “new height” to resize in proportion.
✦Use the Image Resizer to apply the new size.
Quick facts
Freeno signup, no limit
Instantresult in a moment
Privatenothing is uploaded
Any devicephone, tablet or PC
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.
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