About Pixel Dimension Calculator
Determine the exact pixel resolution required to print any photo at gallery-standard 300 DPI or 240 DPI for framed wall art and photo albums.
Key Capabilities & Features
- Calculates exact pixel width and height needed from physical print dimensions and DPI
- Presets for 300 DPI (gallery quality), 240 DPI (fine art), 150 DPI (poster), and 72 DPI (web)
- Computes minimum camera sensor megapixels needed to fulfill the print without upscaling
- Supports standard inches and centimeter print dimensions
How to Use Pixel Dimension Calculator
1
Enter Frame Dimensions
Input your desired physical print width and height in inches.
2
Choose Target DPI
Select 300 DPI for photo labs or 150 DPI for large wall art.
3
Copy Pixel Dimensions
Inspect the exact pixel dimensions to crop or export in your editing software.
Privacy & In-Browser Execution Guarantee
100% client-side calculation. Your data stays private in your browser.
Frequently Asked Questions
Why is 300 DPI considered the photo lab standard?
At standard arm's-length reading distance (about 12 to 14 inches), the human eye cannot resolve individual dots finer than 300 dots per inch.
How many pixels do I need for a 16x20 inch print?
A 16x20 inch print at 300 DPI requires 4800 x 6000 pixels (about 28.8 megapixels).