Portable AC Power Draw Calculator

Estimate running and starting watts for portable air conditioners and check circuit safety.

Convert ASHRAE ratings to SACC, estimate EER, and see generator size recommendations with circuit load status.

Key Features

AC Cooling Capacity

Rating Type

Energy Efficiency Ratio (EER)

Size circulation pumps and estimate power use for solar water heating systems.

Calculate battery backup power for primary and secondary sump pumps to prevent basement flooding during power outages.

Size backup power systems for sewage pumps and ventilation to prevent basement bathroom backups during electrical outages.