BTU Calculator
Calculate Required BTU
Enter room dimensions and characteristics
Room Dimensions (feet)
Enter the length and width of your room to calculate the square footage.
Room Characteristics
These factors will help determine the appropriate BTU adjustment for your space.
Results
Understanding BTU Calculations
What is BTU?
BTU (British Thermal Unit) is a measure of heat energy. One BTU is the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit.
- Higher BTU = More powerful heating/cooling
- Room size directly affects BTU needs
- Insulation quality impacts efficiency
- Climate affects required capacity
Factors Affecting BTU Needs
- Room dimensions and volume
- Window size and quantity
- Ceiling height
- Sun exposure
- Local climate conditions