VGA timing calculator

1. Select the screen mode

Select the screen resolution and refresh rate:

2.The graphics driver settings

General parameters

Pixel clock frequency MHz
Interlace

Horizontal timing parameters
Resolution pixels
Front porch pixels
Sync pulse pixels, polarity *
Back porch pixels

Vertical timing parameters

Resolution lines
Front porch lines
Sync pulse lines, polarity *
Back porch lines

* Where sync polarities 0 = NEGATIVE SYNC and 1 = POSITIVE SYNC

3. Start calculation

Press when you want to get the results.

4. Calculated results

Horizontal sync frequency is kHz.
Vertical sync frequency is Hz.
Field rate is Hz.

Horizontal sync pulse length is microseconds.
Vertical sync pulse length is microseconds.

Horizontal total is pixels and vertical total is lines.