BTU
Calculator

Calculate BTU requirements for heating and cooling based on room size, insulation, climate, and occupancy.

Room Dimensions

Environment

Insulation
Sun Exposure
Climate

Results

Cooling Required

4,200 BTU

Cooling
Heating Required
4,600 BTU
AC Unit Size
0.5 tons
Est. Monthly Cost
$10.08
Room Area
168 sq ft
Room Volume
1,344 cu ft

Insulation Factor Reference

QualityCoolingHeating
Poor1.3x1.4x
Average1x1x
Good0.85x0.85x
Excellent0.75x0.75x

Learn more

Why is an oversized AC unit wasteful, and how do you calculate the right BTU capacity?

BTU Calculator | ToolsCanvas