Screen Size Calculator
Calculate physical width, height, and diagonal inches from pixel dimensions and PPI.
Runs in your browserEvery computation happens in your browser — your data never leaves this device.
Input
Result
Calculated locally and deterministically with standard formulas.
Enter a value to see the result
Primary: 0 · Secondary: 0 · Third: 0
What this tool does
- Calculate quickly with standard formulas.
- Validate date, dimension, or unit data.
Example
Input
1920,1080,91.7878
Output
1920 × 1080 px at 91.7878 PPI = 24.00 in diagonal (20.92 × 11.77 in)
All inputs are strictly validated; calculation is offline and deterministic.
Frequently asked questions
Does it read the system clock?
No. Results depend only on explicit input.
Does it use the network?
No. All calculations run locally in the browser.
What happens to invalid values?
Malformed, impossible, or out-of-range values are rejected.
Keywords：screen-ppi屏幕尺寸计算Screen Size Calculator本地计算