Planning calculators
Size storage, PoE power and UPS capacity before you order. Each calculator shows its formula and assumptions, keeps your inputs in the page address so a result can be shared, and can send the summary to our sales desk.
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CCTV storage calculator
Estimate the drive capacity a recorder needs for your cameras and see which recorders fit.
Open calculator- You enter
- Number of cameras, resolution, compression, frame rate, recording mode, hours per day and days kept.
- You get
- Bitrate per camera, storage in TB, a drive set-up, and NVRs or DVRs with enough channels and bays.
Worked example
15.6 TB
16 cameras at 4 MP, H.265, 25 fps, recorded continuously and kept 30 days.
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PoE power budget calculator
Add up what your cameras and access points draw and find a PoE switch with enough ports and watts.
Open calculator- You enter
- The devices you plan to power, their wattage and quantity, and a headroom allowance.
- You get
- Total draw, the budget you need, ports needed, and PoE switches with enough ports and watts.
Worked example
106.8 W
13 devices drawing 89 W, with 20% headroom, on 13 ports.
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UPS sizing calculator
Total your equipment load and get the UPS rating in VA, with guidance on UPS types.
Open calculator- You enter
- The equipment on the UPS and its wattage, the power factor, headroom and the backup time you want.
- You get
- Total load, the VA rating rounded up to a common size, and guidance on UPS types and batteries.
Worked example
2,000 VA
1,220 W of PCs, monitors, a recorder and a PoE switch, with 25% headroom.
Using the results
- Estimates for planning
- Results use stated assumptions and typical figures. Final sizing depends on the site, the equipment chosen and each maker's datasheet.
- Results you can share
- Each calculator keeps your inputs in the page address. Copy the link to send a result to a colleague or a customer.
- Worked in your browser
- Calculations run on your device. Your inputs reach us only if you send an enquiry.
- Quotations
- Use Ask for a quotation on any calculator to send the summary to our sales desk with your contact details.
Product ranges these tools point to
Want a design checked before you order?
Send your camera list or load list and our sales desk will check the sizing and quote matching models, subject to stock.