Garden & Outdoor calculator
What Outdoor Projector Screen Size Do I Need?
Use viewing distance, target horizontal fov, maximum outdoor screen width to find outdoor projector screen dimensions.
Enter your measurements
What Outdoor Projector Screen Size Do I Need uses viewing distance, target horizontal fov, maximum outdoor screen width and the other configured measurements to return outdoor projector screen dimensions with a formula written specifically for this tool.
- Viewing distance — Required
- Target horizontal FOV — Required
- Maximum outdoor screen width — Required
- Aspect width — Required
- Aspect height — Required
Outdoor projector screen dimensions
Enter the measurements above to calculate outdoor projector screen dimensions.
How the calculation works
V12 calculation: widthByFov=2×audienceDistance×tan(toRadians(targetFov)/2); screenWidth=min(widthByFov,maxScreenWidth); screenHeight=screenWidth×aspectHeight/aspectWidth; diagonal=sqrt(screenWidth^2+screenHeight^2). Angle inputs are explicitly converted to radians before trigonometric functions where required.
Worked example
Example: Viewing distance = 250 cm; Target horizontal FOV = 30 °; Maximum outdoor screen width = 90 cm; Aspect width = 16; Aspect height = 9. Result: Diagonal = 103.26 cm; Screen Height = 50.62 cm; Screen Width = 90 cm; Width By Fov = 1.34°.
Before you decide
The result is only as accurate as the measurements entered. This page calculates the stated geometry or quantity only; product-specific construction or installation details can still affect the final choice. For what outdoor projector screen size do i need, the limiting result on this page is outdoor projector screen size.
Direct measurement/geometry calculation. No external reference is required for the arithmetic itself; the result is derived only from the user-entered measurements and the formula stored in calculationLogicJson.
Frequently asked questions
What does the Outdoor Projector Screen Size calculator tell me?
It returns outdoor projector screen size from the measurements entered on this page. The calculation is specific to outdoor projector screen size, so the result should be compared with the exact product or specification you are considering.
Which measurements should I take for outdoor projector screen size?
Measure viewing distance, target horizontal fov, maximum outdoor screen width, aspect width, aspect height. Use clear, usable dimensions rather than nominal room or product labels.
Should I round the outdoor projector screen size?
Keep the calculated value for comparison, then choose a real product that meets or stays within the returned outdoor projector screen size while allowing for the clearances, tolerances or ratings shown by its manufacturer.