BTU Calculator
Calculate the required BTUs to cool or heat a room efficiently based on square footage, ceiling height, insulation, sun exposure, and occupancy.
btu
air-conditioner
hvac
Common Room Sizes
Popular room dimensions for quick BTU estimation
1Room Details & Environmental Conditions
Enter room size and environmental factors
How it works: Base requirement is 20 BTU per square foot. We adjust for insulation quality, sun exposure, climate, ceiling height, and additional occupants to get a personalized estimate.
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Complete Guide: BTU Calculator
Everything you need to know about using BTU Calculator effectively
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