Aspect Ratio Calculator
Calculate aspect ratios and scale dimensions while maintaining proportions.
How to Use
Enter dimensions
Enter your current width and height.
Set target
Enter new width or height to calculate the other.
Get ratio
View the calculated aspect ratio and dimensions.
Features
Frequently Asked Questions
Aspect ratio is the proportional relationship between width and height, expressed as two numbers like 16:9 or 4:3.
Common ratios include 16:9 (widescreen), 4:3 (standard), 1:1 (square), 9:16 (mobile), and 21:9 (ultrawide).
Calculate aspect ratios for images, videos, and screens. Whether you're designing for 16:9 widescreen, 4:3 standard, or custom dimensions, get pixel-perfect calculations instantly.
Did You Know?
The golden ratio (approximately 1:1.618) has been used in art and architecture for centuries! Many designers believe it creates the most aesthetically pleasing proportions, from the Parthenon to the Apple logo.
Pro Tips
- 16:9 is the standard for YouTube, streaming, and modern monitors
- 9:16 (vertical) is optimal for Instagram Stories and TikTok
- Lock one dimension and calculate the other to maintain ratio
Common Use Cases
- Resizing images without distortion
- Planning video dimensions for different platforms
- Calculating monitor and TV screen sizes
- Designing responsive web layouts
- Photography and print preparation
Best Practices
- Use standard ratios for maximum compatibility across platforms
- Consider the viewing device when choosing aspect ratio
- Account for safe zones in video production
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