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Room Air Conditioning Calculator

Complete the form below and click "Calculate"

Room Name: (i.e. Mom's Bedroom)
Room Size:
Square Footage:
OR
Length by Width: by

Room AC Size (BTUs):
To estimate BTU size, click here






EER Range:
(A higher EER is typically more energy
efficient)





Number of Hours Used:
Per Month:
OR
Per Day: For # Days/Month:
CL&P Rate:
Supplier Energy Rate:
Total Rate (per kWh):
$0.20231