Projector planning
100 Inch Projector Screen Size and Throw Distance
Projector planning depends on image width, not only diagonal size. Use this guide to estimate screen footprint and lens distance.
Quick answer
A 100 inch 16:9 projector screen has an image area about 87.16 inches wide and 49.03 inches tall, or about 2.21 x 1.25 m.
How to calculate projector throw distance
Throw ratio is based on image width. A 1.5 throw ratio means the lens distance is 1.5 times the projected image width.
For a 100 inch 16:9 screen, the image width is about 87.16 inches. At 1.5 throw ratio, the lens should be about 130.74 inches from the screen before model-specific zoom and lens-shift limits.
What this does not include
This estimate does not include screen borders, wall clearance, projector body depth, zoom range, lens shift or keystone correction.
Use the result for early room planning, then confirm the final mounting range in the projector manual.
100 inch 16:9 projector reference
| Item | Value |
|---|---|
| Image width | 87.16 in / 2.21 m |
| Image height | 49.03 in / 1.25 m |
| Throw distance at 1.2 | 104.59 in / 2.66 m |
| Throw distance at 1.5 | 130.74 in / 3.32 m |
Frequently asked questions
Is throw ratio based on diagonal?
No. Throw ratio uses image width. Using diagonal will overestimate the distance.
How high is a 100 inch 16:9 screen?
The image area is about 49.03 inches or 1.25 m tall.
Do I include the screen frame?
No. Calculate the projected image area first, then add the frame size from the screen specification.