Platform
Features
Industries
Calculators
Resources
Pricing
Company
Find a pro
EN
Sign in
Sign up
Find a pro
Platform
Features
Industries
Calculators
Resources
Pricing
Company
Sign in
Business Calculators
BTU Calculator
BTU Calculator
Estimate the BTUs needed to heat or cool a room.
Room area
sq ft
Reset
Result
Copy result
BTUs needed
8,000
Manage project in BisHub
Free to use — no signup required.
FAQ
How many BTUs per square foot?
About 20 BTU per square foot is a common rule of thumb for cooling.
Related calculators
HVAC Tonnage Calculator
CFM Calculator