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Quokkai
Free

Image Resolution Calculator

Free image resolution calculator for print, web, and social media. Calculate pixel dimensions, DPI conversion, aspect ratios, and estimated file sizes for any use case.

Megapixels

2.07 MP

Aspect Ratio

16:9

Print Size (inches)

6.40" x 3.60"

Print Size (cm)

16.3 x 9.1 cm

Est. File Size (JPEG)

607.5 KB

Est. File Size (PNG)

4.9 MB

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Frequently Asked Questions

What resolution do I need for printing?
For high-quality prints, you need 300 DPI. For large format prints viewed from a distance (posters, banners), 150 DPI is usually sufficient. Our calculator shows exact pixel dimensions needed.
What is the best resolution for social media?
Each platform has optimal sizes: Instagram posts (1080x1080), Facebook covers (820x312), Twitter headers (1500x500). Our calculator includes presets for all major platforms.
How do I convert DPI to pixels?
Multiply your desired print size in inches by the DPI. For example, an 8x10 inch print at 300 DPI needs 2400x3000 pixels. Our calculator does this automatically.
What is the difference between DPI and PPI?
DPI (dots per inch) refers to print resolution while PPI (pixels per inch) refers to screen resolution. For digital work, they are often used interchangeably. Our calculator handles both.