Use this electronics calculation for a first-pass component, converter, signal, motor, or sensor estimate when the stated operating conditions and units match the device data.

Horizontal pixels (px)

Required integer input.

Vertical pixels (px)

Required integer input.

Visible diagonal (in)

Required number input.

Calculate diagonal pixels per inch from horizontal and vertical pixel counts and visible diagonal size. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Pixel density (ppi)

The resulting pixel density returned as a number.

• Display brightness, contrast, pixel density, refresh power, and backlight current depend on panel mode, measurement pattern, viewing angle, ambient light, transfer function, refresh behavior, and power-management state. Nominal specifications may use different test methods.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Check the result against the current datasheet and worst-case operating corners, then verify the circuit or measurement with simulation and bench testing where failure matters.

• Video Pixel Clock

  Calculate total raster pixel clock from horizontal total pixels, vertical total lines, and frames per second, including blanking.

• Video Blanking Interval

  Find horizontal and vertical blanking counts by subtracting active pixels or lines from corresponding raster totals.

• Video Line Frequency

  Horizontal line rate from pixel clock and total pixels per line, including horizontal blanking.