Insulation Calculator

Estimate your insulation needs for attic, wall, or crawlspace projects. Calculate recommended R-value, material quantity, and cost instantly.

Area Dimensions

Step 1 of 4

Length

Width

Height (for walls)

Existing Conditions

Step 2 of 4

I have existing insulation

Existing insulation depth

Stud spacing

Location & Insulation Level

Step 3 of 4

Climate Zone

Select the zone that matches your location for recommended R-values

Target R-Value

R-13 R-60

R-38

For your climate zone (Cold), recommended R-value: R-49 to R-60 for attics, R-20 to R-25 for walls.

Your Insulation Estimate

Total Area

sq ft

Recommended R-Value

R-0

for your climate

Material Needed

bags

Estimated Cost

materials only

bags of fiberglass batt insulation (R-0 per inch)