Aspect Ratio Calculator
Calculate aspect ratios for images, videos, and displays. Convert between dimensions while maintaining proportions. Includes common presets for social media and screen diagonals.
| Platform | Type | Size | Ratio | Action |
|---|---|---|---|---|
| Square Post | 1080×1080 | 1:1 | ||
| Portrait Post | 1080×1350 | 4:5 | ||
| Story / Reels | 1080×1920 | 9:16 | ||
| YouTube | Video HD | 1920×1080 | 16:9 | |
| YouTube | Thumbnail | 1280×720 | 16:9 | |
| YouTube | Shorts | 1080×1920 | 9:16 | |
| TikTok | Video | 1080×1920 | 9:16 | |
| Twitter/X | Post Image | 1200×675 | 16:9 | |
| Twitter/X | Header | 1500×500 | 3:1 | |
| Post Image | 1200×630 | 40:21 | ||
| Cover Photo | 820×312 | 205:78 | ||
| Story | 1080×1920 | 9:16 | ||
| Post Image | 1200×627 | 400:209 | ||
| Cover Photo | 1584×396 | 4:1 | ||
| Pin | 1000×1500 | 2:3 |
| Ratio | Decimal | Common Resolutions | Usage |
|---|---|---|---|
| 16:9(yours) | 1.7778 | 1920x1080, 2560x1440, 3840x2160 | HD Video, Monitors, TV |
| 4:3 | 1.3333 | 1024x768, 1600x1200, 2048x1536 | Classic TV, iPad, Presentations |
| 1:1 | 1.0000 | 1080x1080, 2048x2048 | Instagram, Profile Photos |
| 9:16 | 0.5625 | 1080x1920, 720x1280 | Stories, Reels, TikTok |
| 21:9 | 2.3333 | 2560x1080, 3440x1440, 5120x2160 | Ultrawide Monitors, Cinema |
| 3:2 | 1.5000 | 2160x1440, 3000x2000 | DSLR Photos, Surface Devices |
| 5:4 | 1.2500 | 1280x1024, 2560x2048 | Older Monitors, Photography |
| 32:9 | 3.5556 | 3840x1080, 5120x1440 | Super Ultrawide Monitors |
How to Use Aspect Ratio Calculator
- 1Enter width and height or select a preset ratio.
- 2Lock the ratio and change one dimension.
- 3View the calculated dimension and ratio.
- 4Copy dimensions for your project.
Frequently Asked Questions
What is the most common aspect ratio?▾
16:9 is the most common for video and displays. 4:3 is traditional TV format. 1:1 is used for social media posts. 9:16 is for mobile/stories.
How do I calculate aspect ratio?▾
Divide width by height and simplify the fraction. For example, 1920x1080: 1920/1080 = 1.778, which simplifies to 16:9.
What aspect ratios do social media platforms use?▾
Instagram: 1:1 (feed), 4:5 (portrait), 9:16 (stories). YouTube: 16:9. TikTok: 9:16. Twitter: 16:9 or 2:1. Facebook: 1.91:1.
About Aspect Ratio Calculator
Calculate aspect ratios for images, videos, and displays. Convert between dimensions while maintaining proportions. Includes common presets for social media and screen diagonals.
NexTool's Aspect Ratio Calculator is completely free to use with no sign-up required. Your data is processed directly in your browser and never sent to our servers, ensuring complete privacy and instant results.
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