How do I calculate crosshair size on a phone?

Enter the phone's display diagonal and pixel resolution, then enter the total crosshair span in pixels. The calculator estimates its physical width in millimeters and its share of the screen width.

Is the same pixel size equal on every phone?

No. The physical size depends on pixel density. A 24-pixel crosshair appears smaller on a denser display and larger on a lower-density display.

What is the best mobile crosshair size?

There is no universal best size. Use the estimate as a comparison tool, then test visibility without covering the target or nearby detail.

FREE MOBILE DISPLAY TOOL

How big is that crosshair on your phone?

Pixels alone do not describe physical size. Enter a display diagonal, resolution, and crosshair span to estimate millimeters, pixel density, and screen coverage.

Mobile game scene used for a crosshair size preview

SCALE PREVIEW / RELATIVE TO SCREEN WIDTH

Physical span1.16 mm

Screen width64.9 mm

Pixel density461 ppi

Width coverage2.04%

Compact

A focused size band. Check that the center stays visible on bright and busy backgrounds.

WHY PIXELS CHANGE

The same number can look different on every display.

01 / DENSITY

Pixel density changes physical size

A 24-pixel span is physically smaller when those pixels are packed more tightly. The calculator estimates pixels per inch from the diagonal and native resolution.

02 / COVERAGE

Screen percentage helps comparison

Width coverage shows how much of the display the crosshair occupies. It is useful when moving a setup between phones with different resolutions.

03 / TESTING

Numbers are a starting point

Readability still depends on viewing distance, color, outline, scene contrast, and the game itself. Test the result rather than treating one number as universal.

CONTINUE ON IPHONE

Size is one variable.
Your playstyle is the rest.

The calculator measures scale. Crosshair X Pro adds recommendations, ranked presets, detailed controls, live scenes, favorites, and a focused save-and-copy workflow. Free pre-order is available now; release is expected November 8, 2026.

Pre-order on the App Store

QR code to pre-order Crosshair X Pro on iPhone

Open on iPhoneScan with your camera

QUICK ANSWERS

Crosshair size
questions.

How is physical size calculated?

The tool estimates display width from the diagonal and resolution aspect ratio. It then converts crosshair pixels through the estimated pixel density into millimeters.

Is this exact for every device?

It is an estimate. Rounded manufacturer dimensions, display scaling, browser zoom, and game rendering can change the real result slightly.

Does this replace the iPhone app?

No. It only compares physical scale. The app provides recommendations, presets, customization, previews, favorites, and copy-ready settings.