Length (ft)
Width (ft)
Desired R-Value
R-30
R-38
R-49
R-60
Bag Coverage (sq ft @ R-value)
Fiberglass: 40.3 sq ft @ R-30
Fiberglass: 32.3 sq ft @ R-38
Fiberglass: 25.0 sq ft @ R-49
Fiberglass: 20.4 sq ft @ R-60
Cellulose: 48.5 sq ft @ R-30
Cellulose: 38.8 sq ft @ R-38
Cellulose: 30.0 sq ft @ R-49
Cellulose: 24.5 sq ft @ R-60
Cost per Bag ($)
Calculate
Results
Area
Bags Needed
Total Cost