Free Developer Tool
Image Resize Calculator
Calculate new image dimensions while preserving the original aspect ratio.
Original Dimensions
×
New Dimensions
×
Scale Percentage
100% =Original size
50% =Half size
200% =Double size
What is Image Resize Calculator?
Calculate the correct dimensions for resizing an image while maintaining its original aspect ratio and preventing unwanted distortion.
How to use
- Enter the original image width and height.
- Enter the desired width or height.
- Calculate the proportional dimension.
- Review the resulting image size.
Features
- Proportional resizing
- Width and height calculation
- Aspect ratio preservation
- Browser processing
Common Use Cases
- Web image preparation
- Thumbnail sizing
- Responsive images
- Graphic design
Example
Input
Original: 1920 × 1080 Target width: 1280
Output
New size: 1280 × 720
FAQ
Does it preserve the aspect ratio?
Yes.
Can I calculate height from width?
Yes.
Does it resize the actual image?
No. It calculates the resulting dimensions.
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.