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1. Calculate from Diagonal Size
Enter the screen diagonal and aspect ratio to calculate the visible image width, height, viewing distance, and estimated projector throw distance.
inch
Planning values are estimates. Final installation should confirm the actual projector throw range, zoom, lens offset, screen border, mounting position, and room clearance.
CALCULATED RESULT
Your Screen Dimensions
120" · 16:9
Screen Width 2657 mm Visible image width
Screen Height 1494 mm Visible image height
Viewing Distance 3986 mm General planning reference
Throw Distance 3321 mm Based on selected throw ratio
2. Find Size from Image Dimensions
Already know the available projection area? Enter the image width and height, or just one dimension, to find the closest screen size for common projection formats.
CHOOSE CALCULATION MODE What dimensions do you know?
Select one option below to calculate the closest screen size.
CALCULATED RESULT
Closest Screen Format
120.0" · 16:9
Your entered dimensions are closest to the 16:9 projection format.
Entered Image Area 2657 × 1494 mm
Exact Ratio 1.778 : 1
Closest Format 16:9
Calculated Diagonal 120.0"
Nearest Common Nominal Size 120" · 16:9
Nominal Image Area 2657 × 1494 mm
Difference from entered area: 0 mm W × 0 mm H
Need the exact image area you entered?
SCREENPRO® supports custom projection screen sizes. The nearest common nominal size is shown for reference; custom visible image dimensions can be confirmed for specific project requirements.
Planning a specific SCREENPRO® product?
Use the SCREENPRO® Projection Calculator for specific screen sizes and installation calculations based on SCREENPRO® product dimensions.
3. FAQ
Common questions about projection screen dimensions, aspect ratios, throw distance, and custom sizing.
What is the best aspect ratio for most projection screens?
16:9 is the most common choice for home theater, streaming, gaming, and most modern video content. 16:10 is commonly used for business and education, 4:3 is often used with legacy presentation systems, 1:1 may be used for square-format or legacy projection applications, and 2.35:1 is intended for cinema-focused installations.
Can I find the screen size if I only know the image width?
Yes, but width alone does not determine a unique screen size because the result depends on the aspect ratio. The calculator therefore shows the corresponding diagonal size for 16:9, 16:10, 4:3, 1:1, and 2.35:1.
Can I find the screen size if I only know the image height?
Yes. The calculator compares the entered image height across 16:9, 16:10, 4:3, 1:1, and 2.35:1 and shows the corresponding diagonal size and image width for each format.
What does “Nearest Common Nominal Size” mean?
Projection screens are commonly described using nominal diagonal sizes such as 100", 120", or 150". The nearest common nominal size is provided as a reference and does not mean your required dimensions must be changed to that size.
Can SCREENPRO® manufacture a non-standard screen size?
Yes. SCREENPRO® supports custom projection screen sizes for project requirements. If the required visible image area does not match a common nominal size, the exact dimensions can be reviewed before production.
Is diagonal size enough for choosing a projection screen?
No. Width and height are often more important for installation. Projector throw distance is mainly related to image width, while the available wall or ceiling space may limit both image width and height.
What does projector throw ratio mean?
Throw ratio is projector distance divided by visible image width. For example, a 1.25:1 throw ratio means the projector lens is approximately 1.25 times the image width away from the screen surface.
Why should I confirm the projector model before ordering?
Different projectors have different throw ratios, zoom ranges, lens offsets, and installation requirements. Always verify the actual projector specifications before final production or installation.
Need help choosing a SCREENPRO® screen?
Use the calculated dimensions as a planning reference, then confirm screen material, structure, installation method, projector compatibility, and any custom-size requirements with SCREENPRO®.
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