BlendCalc 2.5

BlendCalc is a wide-screen projection calculator. Use it to determine how many projectors are needed to create a wide-screen image. Specify the screen size, projector type and throw distance or lens ratio and it calculates projector positions, pixelspace and overlap. If a perfect fit is not possible then a best-fit solution is provided. Explore any given solution by changing the number of specified projectors at the touch of a button.

  • Print your solution
  • Load background image to screen
  • Calculate illuminance to match brightness across multiple systems
  • Best-fit solution also calculates the amount of brightness/resolution lost
  • Interchangeable units (metres and feet)


*Version is now available. Does not complain about missing .NET framework 3.5 when installing on Windows 10.*
*Version is now available. Fixes incorrect Luminance calculation (thanks to Ian Greenwood for pointing this out) Version 2.4 still available*

  • Microsoft Windows 7 or later
  • Microsoft .NET Framework 4.5 or later