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

File Megabytes (MB)

Required number input.

Runtime Seconds (s)

Required number input.

Average decimal megabits per second from a decimal megabyte file size and duration; includes any audio/container overhead already in the size. 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]

Bitrate Megabits Per Second (Mb/s)

The resulting bitrate megabits per second returned as a number.

• Storage and bitrate estimates depend on codec, chroma sampling, bit depth, frame rate, audio, metadata, overhead, variable bitrate, compression settings, and DCP profile. Nominal rates do not predict image quality or exact package size.
• 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.

• File Size From Bitrate Runtime

  Decimal megabyte file size from constant total bitrate in Mb/s and runtime in seconds.

• DCP File Size

  Decimal gigabytes for a DCP or other constant-bitrate file from total Mb/s and running seconds; excludes filesystem overhead.

• Data Rate Uncompressed

  Decimal megabytes per second for uncompressed constant-frame-rate raster video; excludes headers and audio.