CraftTools

Insulation Calculator

Estimate how many bags or rolls of insulation your project needs based on the area and the product coverage.

525.00 sq ft — Coverage to buy
14.00 bags — Bags / rolls

Frequently asked questions

How do I calculate insulation coverage?

Divide the area to insulate by the coverage listed on the bag or roll, then add a small waste factor. This calculator does it for you.