Use this cinematography or projection calculation to plan image geometry, exposure, timing, storage, film footage, or presentation from explicitly stated camera and display parameters.

Width Pixels (px)

Required integer input.

Resolution Dpi (dpi)

Required number input.

Physical print width in inches from image pixel width and chosen print resolution in dots/pixels per inch. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Print Width Inches (in)

The resulting print width inches returned as a number.

• Real results depend on lens design, sensor or film dimensions, focus criteria, transmission, exposure calibration, codec settings, color pipeline, projector setup, screen, viewing environment, and manufacturer conventions. Nominal specifications and simplified formulas may not match measured performance.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Confirm critical values with the actual camera, lens, codec, projector, and delivery specification, then run a camera or projection test under representative conditions.

• Scan Resolution DPI

  Effective scan resolution in pixels per inch from output pixel width and source width in inches.

• Pixel Count Total

  Total image pixels from integer width and height; rejects products above JavaScript's exact safe-integer range.

• Aspect Ratio From Resolution

  Display width-to-height aspect ratio from integer pixel dimensions; does not simplify to a fraction.