How to use the Dual Monitor Size Calculator
Enter the size, aspect ratio, and orientation for each monitor. Then add the center gap, side clearance, inward angle, stand or arm depth, and available desk width. The calculator estimates whether the dual monitor setup fits.
Use landscape orientation for normal monitor placement and portrait orientation for a vertical secondary display. A portrait monitor can save desk width, but it increases visible height.
If you are deciding between different screen sizes first, compare them with the Screen Size Comparison Calculator. For sharpness, use the Monitor PPI Calculator.
Dual monitor desk width formula
monitor width = diagonal x aspect width / sqrt(aspect width^2 + aspect height^2)projected width = monitor width x cos(inward angle)required desk width = projected left width + projected right width + center gap + side clearance x 2estimated setup depth = max(stand depth, monitor width x sin(inward angle))The formula estimates the visible panel footprint. Portrait orientation swaps width and height before the desk width calculation. Stand bases, monitor arms, bezels, and cables should be checked separately before buying furniture.
Assumptions and methodology
This calculator uses the visible screen dimensions from each monitor's diagonal size and aspect ratio. It treats the inward angle as a simple projected-width estimate, which is useful for desk planning but not a precise furniture drawing.
- Both monitors can have different sizes and orientations.
- Center gap can represent bezels, spacing, or a small air gap.
- Side clearance is added to both outside edges of the setup.
- Estimated depth is the larger of stand depth or angled panel depth.
- Speaker width, laptop docks, monitor arm clamps, and cable clearance are not included unless you add extra side clearance.
Example calculations
Two 27-inch monitors on a 60-inch desk
With two 27-inch 16:9 monitors, a 1-inch center gap, 3 inches of side clearance on each side, and a 15-degree inward angle, the estimated required desk width is 52.5 in. The flat visible panel width before angling is 48.1 in, and the estimated setup depth is 10.0 in.
Common dual monitor desk width examples
These examples use a 1-inch center gap, 3 inches of side clearance on each side, a 15-degree inward angle, and a 10-inch stand or arm depth.
| Setup | Flat width | Angled width | Desk width | Max height |
|---|---|---|---|---|
| Dual 24 in 16:9 | 42.8 in | 41.4 in | 47.4 in | 11.8 in |
| Dual 27 in 16:9 | 48.1 in | 46.5 in | 52.5 in | 13.2 in |
| Dual 32 in 16:9 | 56.8 in | 54.9 in | 60.9 in | 15.7 in |
| 27 in + 24 in portrait | 36.3 in | 35.1 in | 41.1 in | 20.9 in |
| 34 in ultrawide + 27 in | 55.8 in | 53.9 in | 59.9 in | 13.4 in |
Popular dual monitor desk questions
These focused answers cover common desk-width and monitor-size decisions. Use them for a quick starting point, then return to the full calculator when spacing, angle, or monitor orientation changes.
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FAQ
How wide should a desk be for two 27-inch monitors?
For two 27-inch 16:9 monitors, the visible panels alone are about 48.1 in wide with a 1-inch center gap. With a 15-degree inward angle and 3 inches of side clearance on each side, this calculator estimates about 52.5 in of desk width.
Can two 32-inch monitors fit on a 60-inch desk?
It is usually tight. With the default spacing and angle, two 32-inch 16:9 monitors need about 60.9 in of desk width. Reducing side clearance or angling the monitors more can help, but stand bases and speakers may still need extra space.
Does putting one monitor in portrait save desk width?
Yes. A 27-inch landscape monitor plus a 24-inch portrait monitor needs about 41.1 in with the default spacing and angle, which is much narrower than using two large landscape displays.
Should I include monitor bezels in the center gap?
Yes. Use the center gap input to include bezel spacing, physical separation, or the small gap you want between the two screens.
Does this include monitor stand size?
The calculator includes a stand or arm depth estimate, but actual bases vary a lot. Always check the stand footprint, clamp position, cable routing, and how far the screen sits from the back edge of the desk.
Is monitor angle important for dual monitor desk width?
Yes. Angling monitors inward reduces the front-facing width, but it adds depth behind the outer edges. A small inward angle such as 10-20 degrees is common for comfort and fit planning.