About this app
Projector Lens Calculator is a quick reference tool for video technicians and projectionists. Features: - Calculate lens throw ratio. - Calculate screen size. - Calculate projector distance. - Calculate projector lens. - Choose between multiple ratio : 4:3 / 16:9 / 16:10 or custom. - Choose between imperial and metric system. - Get the pixels count per inch/cm. - Get the lumens per ft2/m2.
Latest release
What’s New
***Fix error with lens option
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Sep 14, 2026 · 2:12 PM $2.99