Result
4 TB drive recommended camera storage
Compare surveillance storage at or above 4 TB drive, subject to NVR bay, drive, codec, and retention limits.
- Calculated storage need
- 2.49 TB
- Continuous-recording storage
- 5.18 TB
- Estimated active recording
- 9.6 hours/day
- Storage per active day
- 69.12 GB
Estimate only. Confirm the original file dimensions, exact recording mode, formatted media capacity, tested upload speed, workflow overhead, and a separate backup margin before printing, recording, or promising delivery. Read the full disclaimer.
More
Optional equipment checkWhat to compare before buying
Use the calculated drive tier to compare surveillance-rated storage by recorder compatibility, supported capacity, workload rating, bay count, continuous-write design, warranty, and redundancy plan.
Buying checklist
Search Amazon for surveillance storage: Check price on Amazon
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- Cost
- Free
- Login
- Not required
- Best use
- Calculate a surveillance-drive capacity from camera count, bitrate, recording hours, retention days, motion-recording duty, and storage reserve.
- Output
- Browser result with print and PDF options
Result summary
Quick answer
With the sample inputs, this calculator returns 4 TB drive recommended camera storage. Calculated storage need: 2.49 TB. Use 4 TB drive recommended camera storage as the first workflow estimate, then confirm the source pixels, exact bitrate or interval, formatted storage, measured upload speed, and a separate overhead and backup margin.
Instructions
How to use this calculator
Open the short walkthrough for choosing and checking inputs.
The calculator converts per-camera bitrate to storage, multiplies by cameras, scheduled hours, retention days, and recording duty, adds reserve, and rounds up to a whole two-terabyte drive tier.
Page guide
On this page
Jump directly to the part of the calculator you need.
Calculation details
Formula and methodology
See the exact math used to produce the result.
The calculator combines the inputs above into a practical planning estimate.
Before acting
Assumptions to check
Review the real-world details that can change the estimate.
The key inputs are Security cameras, Bitrate per camera, Scheduled recording per day, Retention period, Motion or recording duty. Confirm codec, resolution, frame rate, variable bitrate, scene activity, audio, recorder overhead, formatted drive capacity, supported bays and drive sizes, redundancy, exported clips, and future camera count.
More guidance Examples, methodology, and planning checks Open the worked example, review notes, reference tables, and practical next checks.
When to round up
Round up for variable bitrate, audio, higher frame rates, busy scenes, metadata, RAID or mirrored storage, formatted capacity, exported clips, codec changes, and future cameras; confirm the recorder's drive type, bay, and maximum-capacity support.
When to use this calculator
- Planning print dimensions, recording storage, timelapse capture, or upload time
- Comparing media and backup capacity before a shoot or installation
- Estimating delivery windows from measured file sizes and upload speed
Tips for better estimates
- Use original pixel dimensions, the selected camera mode, and the bitrate reported for that mode.
- Compare estimates with formatted card or drive capacity and leave room for variable bitrate, proxies, exports, and duplicate backups.
- Use a recent upload-speed test from the actual network and allow for Wi-Fi variation, retries, and cloud processing.
How this estimate was built
This page converts per-camera bitrate to storage across camera count, active hours, retention days, and recording duty, adds reserve, and rounds up to a practical two-terabyte surveillance-drive tier.
Worked example
Example inputs: Security cameras: 4; Bitrate per camera: 4 Mbps; Scheduled recording per day: 24 hours; Retention period: 30 days; Motion or recording duty: 40 %; Storage reserve: 20 %. With those values, the calculator returns 4 TB drive recommended camera storage. Compare surveillance storage at or above 4 TB drive, subject to NVR bay, drive, codec, and retention limits.
Example scenarios
- Use 4 TB drive recommended camera storage as the first workflow estimate, then compare it with the original file or the exact recording-mode specifications.
- Leave capacity for formatted-media loss, variable bitrate, proxies, exports, setup frames, retries, and a separate backup copy.
- Rerun transfer estimates with measured upload speed from the network and time of day that will actually be used.
Quick reference chart
| Sample result | 4 TB drive recommended camera storage |
|---|---|
| Calculated storage need | 2.49 TB |
| Continuous-recording storage | 5.18 TB |
| Estimated active recording | 9.6 hours/day |
| Storage per active day | 69.12 GB |
| Best next step | Use 4 TB drive recommended camera storage as a starting estimate, then compare it with the real conditions before acting. |
FAQs
Security Camera Storage Calculator questions
Can I use this as an exact photo or video workflow result?
No. Use it as a planning estimate, then confirm original file dimensions, the selected recording mode, formatted media capacity, measured upload speed, and workflow overhead.
Should I add storage or transfer headroom?
Yes. Leave room for variable bitrate, RAW files, proxies, thumbnails, exports, retries, duplicate backups, and cloud-side processing.
What should I check before buying storage media?
Check supported capacity, sustained write speed, endurance rating, file-system format, formatted capacity, and the camera or recorder manufacturer's requirements.
Does upload time use download speed?
No. Use measured upload speed from the actual connection, then allow for shared bandwidth, Wi-Fi variation, protocol overhead, retries, and many-small-file slowdown.
Is the security camera storage calculator exact?
No. It is a media-planning estimate. Cropping, compression, variable bitrate, storage overhead, editing files, connection speed, and service behavior can change the result.
What inputs matter most?
Camera count, per-camera bitrate, scheduled recording, retention, recording duty, and reserve determine the drive tier.
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Common planning mistakes
Using resolution labels instead of actual pixels or bitrate, confusing upload speed with download speed, ignoring formatted media capacity, and leaving no room for variable bitrate, retries, exports, or backup copies.
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