Rack Power Calculator
Estimate rack load, amperage, A/B feed split, utilization and basic circuit sizing for infrastructure planning.
Equipment list
Add devices, quantity and estimated watts. Results update automatically.
| Device | Qty | Watts each | Feed | Notes | Action |
|---|
Planning note
Results are estimates. Verify equipment nameplate power, measured load and site power design before production use.
How to use this calculator
1. Add devices
Enter equipment type, quantity and expected watts per device.
2. Select power design
Choose voltage, circuit rating and redundancy model.
3. Review utilization
Check current draw, A/B feed split and recommended capacity.
Need help with your infrastructure project?
For rack power planning, PDU layouts, structured cabling, network planning and operational infrastructure support.
Found a bug or wrong result?
Report issues, wrong calculations or improvement ideas for this tool.
Report a bugDisclaimer: This calculator is provided for planning and educational purposes only. Electrical designs must be verified against site standards, local regulations, qualified electrical review, equipment documentation and operational requirements before implementation.