Free Insulation Calculator – Instantly Estimate Insulation Volume
Instantly estimate the insulation volume needed for your project. Includes expert tips, formulas, and answers to common questions.
Insulation Calculator
Enter your area dimensions and insulation thickness to calculate total volume needed.
How to Use the Insulation Calculator
Step-by-step guide to accurately calculate insulation volume for any project.
- Measure Area: Measure the length and width of the area to insulate (in feet).
- Enter Thickness: Input the desired insulation thickness (in inches).
- Calculate: Click Calculate to see the total insulation volume needed.
- Adjust for Waste: Add 10% extra for waste and odd spaces.
Quick Insulation Answers
Voice search and featured snippet optimized answers
How do I calculate insulation volume?
Multiply length × width × thickness (in inches), then divide by 12 for cubic feet.
What thickness should I use?
Typical attic insulation is 10-14 inches; walls 3.5-6 inches.
How much extra should I order?
Add 10% for waste and odd-shaped areas.
What is R-value?
R-value measures insulation effectiveness; higher is better.
Insulation Tips
- Seal air leaks before adding insulation.
- Use proper safety gear when handling insulation.
- Check local codes for recommended R-values.
- Add 10% extra for waste and odd spaces.
Frequently Asked Questions
What type of insulation is best?
Fiberglass batts are common, but spray foam and blown-in are also effective.
How do I calculate for irregular spaces?
Break the area into rectangles, calculate each, then add together.
Does insulation settle over time?
Some types may settle; check manufacturer recommendations.