Insulation R-Value Calculator

Calculate the right amount of insulation for your home based on climate zone. See current R-value, recommended R-value, and how much insulation to add.

Climate Zone (1-7)

Area to Insulate

Area (sq ft)

Current Insulation Type

Current Thickness (inches)

Add Insulation Type

Current R-Value

R-19

Recommended R-Value

R-49

R-Value Gap

R-30 needed

Inches to Add

8.1"

Estimated Cost

$4349

Est. Annual Savings

$60/yr