Image Size Calculator

Upload an image file and calculate its width and height.

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Notice

After uploading the image file, its width and height will be automatically calculated and displayed.

Image Size (Width, Height) Concept and Interesting Information

Image size is defined by the number of pixels in the width and height of the image.
Knowing the image size helps predict the quality and sharpness of the image displayed on the screen.

1. Image Size Units

Image size is typically measured in pixels (px). A pixel is the smallest unit of the screen, and it determines the resolution and quality of the image.

2. Resolution and Image Size

Resolution refers to the details in an image and is commonly measured in DPI (dots per inch). High-resolution images contain more pixels and provide clearer, more detailed visuals.

3. Adjusting Image Size

Image size can be adjusted using various software. Resizing an image may affect its quality, and this change also impacts the file size.

4. Image Size Optimization for the Web

When using images on the web, it's essential to optimize the image size for faster loading. This involves adjusting the resolution and reducing the file size to improve performance.