Screen PPI Calculator

Screen PPI calculator: calculate PPI, pixel density and aspect ratio from resolution and diagonal inches for purchase and design, with one-click copy and offline.

Cách sử dụng

Enter resolution (width x height) and diagonal size (inches) to get PPI and density.

Overview

Screen PPI Calculator is a calculator tool that Screen PPI calculator: calculate PPI, pixel density and aspect ratio from resolution and diagonal inches for purchase and design, with one-click copy and offline. It runs 100% in your browser with no upload, so you get instant results with privacy. Whether you need a quick answer or batch processing with precise control, you can enter, validate and export in seconds. The UI is responsive on mobile, tablet and desktop and supports one-click copy.

Use cases

BMI/BMR and calorie needs
Unit and ratio conversion
Unit-price and coupon math
Percent and discount
Use it to cross-check “ppi、屏幕密度” in reports, docs or APIs to avoid manual conversion errors

How to use

1 Enter numbers and operators
2 See live result and steps
3 Switch units/precision
4 Save frequent formulas

Highlights

Local & private: processing stays in your browser
Live validation with tolerant parsing
One-click copy and export for docs, code or sheets
Batch and offline support under poor network

Notes

Health calculators are for reference only
Distinguish percent share vs growth
Parentheses clarify precedence

FAQ

Decimals?

Default 2 decimals, adjustable.

History?

Last 20 entries saved locally.

How is Screen PPI Calculator different?

It runs locally with a focus on speed and privacy, plus tolerant parsing for “ppi、屏幕密度” and one-click copy for reuse.

Can I use results in official reports?

Use it as a working draft and cross-check with authoritative sources; keep the exported log and parameters for traceability.

Tip：Tip: Bookmark this page or pin the tab; find related tools via categories and search (convert → calculate → export).

All calculations run locally in your browser; nothing is uploaded.