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

Footage Feet (ft)

Required number input.

Frames Per Foot (frames/ft)

Required number input.

Approximate exposed frame count from film footage times a specified gauge/perforation-dependent frames-per-foot value. 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]

Frame Count (frames)

The resulting frame count returned as a number.

• Film footage and runtime conversions depend on gauge, perforation format, frames per foot, frame rate, leader, tails, splices, reel capacity, and scanning convention. Actual usable footage and archive condition require inspection.
• 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.

• Runtime To Footage

  Film footage needed for a runtime at a specified frame rate and gauge-dependent frames-per-foot value.

• Footage To Runtime

  Film runtime from footage, gauge-specific frames per foot and projection frame rate.

• Reel Runtime 2000 ft

  Runtime of a nominal 2,000-foot reel from gauge-dependent frames per foot and projection frame rate.