Free Developer Tool
Responsive Image Calculator
Calculate image dimensions and sizes for responsive web layouts.
Original Image
×
Target Width
Responsive Widths
What is Responsive Image Calculator?
Calculate responsive image dimensions for different viewport sizes and display contexts to help choose appropriate image sizes for responsive websites.
How to use
- Enter the original image dimensions.
- Enter the target display width or responsive sizes.
- Calculate the resulting image dimensions.
- Review the recommended responsive image sizes.
Features
- Responsive dimension calculation
- Aspect ratio preservation
- Multiple viewport sizes
- Browser processing
Common Use Cases
- Responsive web design
- Image optimization
- srcset planning
- Frontend development
Example
Input
Original: 2400 × 1600 Target widths: 320, 768, 1200
Output
320 × 213 768 × 512 1200 × 800
FAQ
Does it preserve the aspect ratio?
Yes.
Can multiple target widths be calculated?
Yes.
Is processing local?
Yes.
Missing a feature?
If this tool doesn't cover your use case or is missing functionality, please let me know through the Contact page.
New improvements and features are added based on user feedback.