Aspect Ratio Calculator
Calculate aspect ratios and resize dimensions instantly. Perfect for images, videos, and responsive design. Support for common ratios like 16:9, 4:3.
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What is Aspect Ratio Calculator?
An aspect ratio calculator determines width-to-height proportions for images and videos. It helps resize content while maintaining proportions, ensuring media displays correctly across different screens and platforms.
Key Benefits
- Maintain proportions
- Common ratio presets
- Dimension calculator
- Platform guidelines
Common Use Cases
- •Image resizing
- •Video production
- •Social media content
- •Responsive design
How to Calculate Aspect Ratio
- Enter dimensions: Type the width and height of your image or video.
- See the ratio: View the simplified aspect ratio (e.g., 16:9).
- Calculate new size: Enter a new width or height to find the other dimension.
- Choose presets: Select common ratios for social media, video, or photo formats.
Key Features
- Calculate aspect ratios from width/height
- Common presets (16:9, 4:3, 1:1, etc.)
- Maintain ratio when resizing
- Pixel and percentage modes
- Compare multiple resolutions
- CSS aspect-ratio property output
Frequently Asked Questions
What is aspect ratio?
Aspect ratio is the width-to-height relationship of an image or video, expressed as two numbers (16:9, 4:3). It determines how content appears on different screens.
What are common aspect ratios?
16:9 (widescreen/HD), 4:3 (standard), 1:1 (square/Instagram), 9:16 (vertical/stories), 21:9 (ultrawide). Each suits different platforms and content types.
How do I resize without distortion?
Lock aspect ratio and change one dimension. The calculator automatically adjusts the other to maintain proportions.
What aspect ratio for social media?
Instagram posts: 1:1 or 4:5. Instagram stories/TikTok: 9:16. YouTube: 16:9. Twitter: 16:9 or 2:1. Check platform guidelines for best results.