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Print Size Calculator

Will your photo print sharp — or blurry? Find out in seconds before wasting money at the print shop.

Runs in your browser — image never leaves your device
🖨️

Drop your photo here

or browse to upload

Preview
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Select Print Size
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Print Quality Target

Your Image
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pixels
Needed for print
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Effective DPI
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at selected size
Max Sharp Print
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at 300 DPI
Resolution Quality Meter
Blurry Acceptable Sharp Overkill
All Common Sizes — At A Glance
Print Size Needs (300 DPI) Your Image Result

What you need to know about print resolution

What is DPI?

DPI (Dots Per Inch) tells a printer how many ink dots to pack per inch. 300 DPI is the gold standard for photos — you can't see individual dots at normal viewing distance. Below 150 DPI images look noticeably soft or pixelated.

How many pixels do I need?

Multiply: width (in) × DPI = pixels needed. A 4×6" photo at 300 DPI needs at least 1200×1800 pixels. This calculator does it automatically for every common size.

Phone vs DSLR — does it matter?

Modern flagship phones (12+ MP) print sharp up to A4 easily. A 12 MP shot (~4000×3000 px) prints perfectly at 13×10 inches at 300 DPI. Cropped heavily? Resolution drops fast — check before printing.

What if my image is too small?

Two options: print smaller (check the safe size column), or upscale with an AI tool before printing. Upscaling blurry is still blurry — better to print smaller and sharp than big and soft.