homelab

Calculate total power consumption, electricity cost, and circuit requirements for a homelab. Enter each device's wattage to get daily/monthly/yearly kWh and cost at your local electricity rate. Accounts for cooling overhead via PUE (Power Usage Effectiveness). Shows amperage draw at 120V and 240V and warns if you exceed the NEC 80% continuous load limit on a 15A breaker. Essential for budgeting homelab operating expenses and ensuring your electrical panel can handle the load. Chain output total_watts into cooling_btu for heat load sizing.

post/api/power_cost

Request

  • Base URL: https://calc.engineer
  • URL: https://calc.engineer/api/power_cost
  • Auth: none declared

Request body

hours_per_daynumber

Hours per day the devices are running

kwh_rate_centsnumber

Electricity cost in cents per kilowatt-hour

puenumber

Power Usage Effectiveness — ratio of total facility power to IT equipment power. 1.0 means no cooling overhead, 1.2 is typical for a home server closet, 1.5+ for poorly ventilated spaces

Response

Computed result for power_cost

toolstring required
versionstring required
computed_atstring date-time required

Changes

No recorded changes to this operation across all 1 revision of this API.