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Aspect Ratio Calculator
MatheCalculate aspect ratios and resize dimensions proportionally.
ttb run aspect-ratio
16:9
Decimal: 1.7778
16:9
🔒 Resize maintaining ratio:
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So verwendest du Aspect Ratio Calculator
Enter a width and height to calculate the aspect ratio (e.g., 1920×1080 → 16:9). Or enter an aspect ratio and one dimension to calculate the other. The tool includes common presets: 16:9 (widescreen), 4:3 (classic TV), 1:1 (square), 9:16 (mobile), and 21:9 (ultrawide).
1
Enter your parameters
Configure the inputs for the Aspect Ratio according to your specific needs.
2
View real-time results
The utility instantly processes your request and displays the calculated outputs directly in your browser.
3
Copy or Download
Click the copy icon next to the final output to instantly grab the result, or export it if applicable.
Häufig gestellte Fragen
What is 16:9?+
16:9 is the standard widescreen aspect ratio used by virtually all modern TVs, monitors, YouTube videos, and HDTV broadcasts. It means the width is 1.78 times the height. Common resolutions: 1280×720, 1920×1080, 3840×2160.
What aspect ratio should I use for social media?+
Instagram feed: 1:1 or 4:5. Instagram Stories/Reels and TikTok: 9:16. YouTube: 16:9. Facebook feed: any, but 1:1 gets best engagement. Twitter: 16:9 or 2:1 for link cards.