Yes, completely free with no signup required.

Does my data leave my device?

No. All calculations happen in your browser — nothing is sent to a server.

Does it work on mobile?

Yes. The tool is mobile-first and works on any modern browser.

画像のピクセル寸法と印刷物理サイズからDPIを計算し、印刷品質を評価します。

100% client-side · no upload

Image width (px)

Image height (px)

Print width (in)

Print height (in)

Enter your image's pixel width and height (find these in your image editor or file info).
Enter the intended print width and height in inches.
The calculator shows the DPI and whether the quality is suitable for professional printing (300 DPI+), home printing (150–299 DPI), or too low (<150 DPI).

Is this tool free?: Yes, completely free with no signup required.
Does my data leave my device?: No. All calculations happen in your browser — nothing is sent to a server.
Does it work on mobile?: Yes. The tool is mobile-first and works on any modern browser.

Last updated: 2026-05-20 By jarvisbox