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CCTV Storage Calculator

Lifestyle Tools

Bitrate/channels/days, HDD advice

Quick Answer

CCTV Storage Calculator: Bitrate/channels/days, HDD advice. CCTV Storage Calculator uses standard everyday life formulas to compute accurate results instantly.

Kbps
ch
days
Codec
Storage required
1.24 TB
1266 GB · recommended drive: 2TB
Effective bitrate1024 Kbps
Per channel/day10.55 GB
All channels/day42.2 GB

Calculation steps

  1. 1Effective bitrate = 2048 Kbps ÷ 2 (H.265) = 1024 Kbps per channel
  2. 2Per channel per day: 1024 ÷ 8 × 86400 = 10.55 GB
  3. 3Total: 10.55 GB × 4 ch × 30 days = 1265.6 GB ≈ 1.24 TB
  4. 4Recommend 2TB drive (usable ~93% after formatting holds 45 days for your setup)

Drive options (days covered)

DriveUsableDays for your setup
1TB952 GB23 days
2TB ★1905 GB45 days
4TB3809 GB90 days
6TB5714 GB135 days
8TB7619 GB181 days
10TB9523 GB226 days

Scene presets comparison

1080P normal1.24 TB
1080P busy2.47 TB
4MP normal2.47 TB
4K normal4.94 TB
4K busy7.42 TB
Real-world savings: motion-triggered recording typically cuts storage 40-70% vs continuous; sub-stream + smart codecs (H.265+) halve again. Surveillance drives (WD Purple / Seagate SkyHawk) are rated for 24/7 writes — desktop drives fail early in NVRs. Add 10-20% headroom: NVRs overwrite oldest footage when full.

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How to Use

  1. Enter scenario values: fill real-life numbers into the CCTV Storage Calculator (defaults work for a quick try).
  2. Instant results: everything computes live, no button needed.
  3. Read the advice: results come with practical tips, reference standards and pitfalls.
  4. Compare options: adjust parameters to compare choices side by side.

Key Points

  • CCTV Storage Calculator is a free online everyday life tool — open and use, no sign-up.
  • All calculations run locally in your browser; your data never leaves the device.
  • Key capability: Bitrate/channels/days, HDD advice.
  • Results come with formulas and reference tables so you can verify every number.

Formula & How It Works

CCTV Storage Calculator formula

CCTV Storage Calculator uses standard everyday life formulas to compute accurate results instantly.

FAQ

How do I use the CCTV Storage Calculator?
Open the page and fill in the input fields — results update automatically. Bitrate/channels/days, HDD advice.
Are the results accurate?
Yes. Standard formulas and conversion factors are used and verified.
Is it free? Do I need to sign up?
Completely free. No registration, login or download required.
Does it work on mobile?
Yes. The responsive design works on phones, tablets and desktops.
Is my data saved?
No. Everything runs locally in your browser.

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Source & Updates

Based on common formulas and industry conventions. Last updated: 2025-07

Last updated:

Formulas and content on this page are reviewed by the YiJianSuan team. For reference only — official sources prevail.

Maintained and periodically reviewed by the YiJianSuan editorial team — review process in ourEditorial Policy.

Cite this page: YiJianSuan. CCTV Storage Calculator[EB/OL]. https://www.yijiansuan.com/en/c/life/cctv-storage

Results provided by this tool are for reference only and do not constitute professional advice.