BTU Calculator

This tool helps estimate the BTU (British Thermal Unit) requirements for cooling or heating a room or area based on size, height, insulation, sun exposure, and other conditions.

Room Size Enter the room size and select unit

Room Ceiling Height Standard height is around 8 ft (2.4 m)

Number of People Inside Regularly Exclude the first person (already included in base BTU)

Type Select the room or area type Insulation Condition Choose based on how well-insulated the area is Sun Exposure Indicates how much direct sunlight the space receives Climate Choose climate type of your region