📐 What is Ratio Calculator?
Ratio Calculator computes and converts aspect ratios for images, videos, and screens. Automatically extracts ratios from dimensions and calculates new sizes while maintaining proportions. Includes common ratio presets (16:9, 4:3) and golden ratio (1:1.618) calculations. Essential tool for designers, developers, video editors, and photographers.
📊 Common Screen/Image Ratios
| Ratio | Use Case | Example Resolution |
|---|---|---|
| 16:9 | YouTube, TV, Monitors | 1920×1080, 3840×2160 |
| 4:3 | Classic TV, Presentations | 1024×768, 1400×1050 |
| 21:9 | Ultrawide Monitors, Cinema | 2560×1080, 3440×1440 |
| 9:16 | Mobile Portrait, Shorts/Reels | 1080×1920 |
| 1:1 | Instagram, Profile Photos | 1080×1080 |
💡 Tips for Using Ratios
- Thumbnails: Use 16:9 for YouTube, 1:1 or 4:5 for Instagram
- Golden ratio design: 1:1.618 creates visually balanced layouts
- When resizing: Maintain original ratio to prevent image distortion
- Plan your crop: Decide target ratio before shooting or editing
Frequently Asked Questions
What is the difference between aspect ratio and resolution?▼
Aspect ratio is the proportional relationship between width and height (e.g., 16:9), while resolution is the actual pixel count (e.g., 1920×1080). Same aspect ratio can have different resolutions.
Why is the golden ratio important?▼
The golden ratio (1:1.618) has been considered the most aesthetically pleasing proportion since ancient times. It is used in logos, layouts, and photo composition to create visual balance.
What happens if the aspect ratio does not match?▼
The image will appear stretched or squashed. Common solutions are cropping the image or adding letterboxing (black bars) to maintain the correct proportions.
What is Aspect Ratio Calculator?
Calculate image and video dimensions for common aspect ratios like 16:9, 4:3, 21:9, and 1:1. Enter one dimension to find the other. Essential for responsive design and video editing.