Video Aspect Ratio Calculator
Calculate dimensions and ratios for video, photos, and responsive design. Free, fast, and runs 100% in your browser.
Video platforms require specific aspect ratios — YouTube uses 16:9, Instagram supports 1:1 and 9:16, TikTok uses 9:16. This calculator determines the correct dimensions when scaling video while maintaining the proper ratio.
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Aspect Ratio Calculator
Calculate dimensions, convert between ratios, and find matching resolutions for video, photos, and design.
16:9
1.7778
1920×1080
2.07 MP
1920 × 1080
Feature Overview
| Feature | Details |
|---|---|
| 16:9 preset | ✓ |
| 4:3 preset | ✓ |
| Custom ratios | ✓ |
| Privacy | 100% client-side |
Frequently Asked Questions
What aspect ratio does YouTube use?
16:9 (widescreen) is the standard for YouTube. Common resolutions: 1920×1080 (1080p), 3840×2160 (4K).
What about vertical video?
TikTok and Instagram Reels use 9:16 (1080×1920). Just flip the 16:9 ratio.