Furseka CalcReal-life calculatorsby FurrySekai

Digital

How many hours of video fit in my storage?

Convert storage, video and audio bitrates, stream count, and recording schedule into footage hours and retention days.

Formula version 2.0.0 · Last reviewed 2026-08-30

Preparing the calculator.

Calculator inputs and results

Editable example values

Presets are screen-recording examples. Variable bitrate, container, and filesystem overhead change actual duration.

Quality and bitrate vary by platform, codec, and scene. Choose an example, then replace it with an observed value.
Mbps
kbps
Advanced settings
%
hours
%
How far baseline usage may move up or down. It provides the basis for the result range.

Check the inputs and calculate

Changing an input immediately clears the previous result so conditions cannot be mixed up.

Formula and assumptions

Total hours are actual footage duration. Calendar days are retention at the entered daily schedule; under loop recording, this approximates the overwrite interval for the oldest footage.

Convert usable bytes to bits and divide by (video Mbps + audio Mbps) × streams. Convert seconds to hours; for part-day recording, divide footage hours by daily recording hours for calendar days.

Why the result can vary

Variable bitrate, scene motion, codec settings, container overhead, metadata, snapshots, and decimal-versus-binary storage displays change actual capacity.

Example

Check one continuous recording stream

Inputs: 500GB available, 10Mbps video, one stream, no audio

Outcome: Using decimal units, that is about 400,000 seconds, 111 hours, or 4.6 days of continuous footage.

Cautions

  • The calculator does not invent bitrate from a compression-preset name.
  • For required evidence retention, validate with actual data generated by the equipment.
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Frequently asked questions

Are Mbps and MB/s the same?

No. Lowercase b is bits and uppercase B is bytes; one byte is eight bits. This input is Mbps.

Do two cameras double storage time?

The opposite. Two equal-bitrate streams double total data rate and roughly halve retention.

How do I enter motion-only recording?

Estimate the average hours actually recorded each day. Use a wider range if motion frequency changes substantially.