Best monitor height for dual monitors
Dual monitors should support your actual workflow, not create a perfectly symmetrical display wall. Start with the screen you use most, set its height and distance first, then position the second display around it.
Choose a primary monitor
If one display gets most of your attention, place it directly in front of you and treat the second as supporting space. If both are used equally, bring the inner edges together near your centerline so you do not hold your neck turned for long periods.
Set height from your normal seated position
Sit comfortably before adjusting the displays. You should be able to view the main working area without repeatedly lifting or dropping your chin. The exact top-edge position varies with monitor size, vision, and whether you use progressive lenses, so comfort matters more than a rigid universal rule.
Match the useful viewing areas, not just the bezels
Different monitor sizes can have different stand heights and active display areas. Align the parts of the screens you actually read rather than forcing the physical tops to match when that makes one display uncomfortable.
Keep distance consistent where possible
If one monitor sits much closer than the other, your eyes and posture may constantly readjust. Angling both screens slightly toward you can reduce head movement and keep viewing distance more consistent.
Arms make alignment easier
A dual arm or two single arms can simplify height and depth adjustment, but desk compatibility matters. Compare single vs dual monitor arms before choosing the mounting approach.
Recheck after a full work session
A setup can look correct for five minutes and still cause repeated neck turning during real work. Notice where your windows, browser, chat, and reference material actually live, then move the monitors to support those habits.
Workroom Standard conclusion
For dual monitors, set the primary display first and minimize repeated neck rotation. Equal-looking screens are less important than keeping the content you use most in a comfortable central viewing zone.