Helping you live your best digital life.

Projector & Screen Calculator

Plan screen size, projector distance, brightness, seating, and lens-shift clearance before the room is finalized. Use it as a starting point for a Davis Audio & Video theater design conversation.

Start planning Schedule consultation

Screen fit Convert diagonal, width, and height across common theater aspect ratios.

Throw distance Use a projector's min and max throw ratio to check mounting range.

Room readiness Review brightness, seating distance, and lens-shift planning notes.

Projection planning

Room, screen, and projector inputs

Enter the screen size you are considering, then add the projector's throw-ratio range from its spec sheet. The results update instantly.

Aspect ratio

Image measurement Image size

Units

Inches / feet Cm / meters

Throw distance

Projector throw ratio

Minimum ratio Maximum ratio

Throw ratio is distance divided by image width. Zoom lenses usually list a minimum and maximum value.

Brightness

Rated lumens Screen gain

Room target

Vertical lens shift Preferred viewing angle Projector model notes

Next steps

Use the math to narrow the choices, then verify the final system in the room.

Confirm the projector

Use the manufacturer's throw ratio, lens-shift range, light output, and mounting requirements for the exact model.

Review site conditions

Ceiling height, soffits, throw path, screen wall depth, electrical, ventilation, and seating risers can change the plan.

Design the whole room

Screen material, speaker layout, acoustics, control, lighting, and shades all affect the finished cinema experience.