Image & DPI
DPI Calculator
Calculate print size from pixels and DPI, or required pixels from print size and DPI.
DPI Calculator
Convert between pixel dimensions, print size, and DPI.
Choose the direction to calculate.
Target resolution.
Image width in pixels.
Image height in pixels.
Ready to calculate
Adjust the inputs, then click Start. Change values and click Start again whenever you want a fresh result.
Why DPI matters
DPI planning connects digital pixels to physical inches. More pixels per inch usually means sharper detail when the print is viewed up close.
For many photos and flyers, 300 DPI is a practical target. Large posters can often use less because people stand farther away.
How to use this tool
- Choose whether you know pixels or print size.
- Enter your width, height, and DPI.
- Read the calculated print size or required pixel dimensions.
Common use cases
- Photo printing
- Poster planning
- Creating print-ready image exports
Frequently asked questions
What DPI should I use for printing?
300 DPI is a common target for close-view prints. Larger posters viewed from farther away can often use 150 to 200 DPI.
Is DPI the same as PPI?
PPI describes image pixels per inch. DPI usually describes printer output. In many layout tools people use the terms together when checking print resolution.