Calculator
Projector Throw Distance & Screen Size Calculator
Work out how far to place your projector for a desired screen size, or find out what screen size fits your room — using throw ratios sourced directly from Eosara's verified projector database.
ImportantThrow ratio is calculated from the image width, not the diagonal. Every figure below is derived from image width; screen diagonal is shown for reference using your selected aspect ratio. Only models with a manufacturer-verified throw ratio (38 of 41 in the database) appear in the model selector below — models without an independently verified throw ratio are intentionally excluded from this tool (see their individual database pages for what is and isn't verified for each model).
Before permanent mounting: these figures are calculated from published manufacturer specifications and are a strong starting estimate, not a substitute for measuring your own room and testing placement with the actual unit. Lens shift, zoom mechanics, and mounting hardware vary by unit — always verify placement with the projector powered on before drilling or permanently mounting anything.