Calculator
Enter counts for your jobsite endpoints and reserves.
Example data table
| Scenario | Device ports | Growth | Uplinks | Spares | Total required | Suggested plan |
|---|---|---|---|---|---|---|
| Small site office | 18 | 20% | 2 | 2 | 26 | 1 × 48-port |
| Mid-size jobsite | 34 | 15% | 4 | 4 | 48 | 1 × 48-port |
| Large perimeter coverage | 92 | 25% | 6 | 6 | 135 | 2 × 48-port + 1 × 48-port |
Values are illustrative. Adjust uplinks and spares to match your topology.
Formula used
Device Ports = cameras + access points + phones + workstations + controllers + access control + printers + misc.
Growth Ports = ceil(Device Ports × growth%).
Total Required Ports = Device Ports + Growth Ports + uplinks + spares + stacking reserve + patch reserve.
PoE Ports Needed = PoE devices + ceil(PoE devices × growth%).
How to use this calculator
- List every wired endpoint planned for the jobsite.
- Enter counts for each device category in the form.
- Add uplinks for router links and switch-to-switch links.
- Set a realistic growth percentage for future additions.
- Enter PoE device counts to estimate powered ports.
- Press Calculate, then export results if needed.