Estimate R-value, thickness, and cost in seconds
Use this insulation calculator to estimate required thickness, material coverage, and total cost.
Enter area and desired R-value to estimate insulation needs.
500 sq ft at R-19 ≈ 5.4 inches thickness, ~$750.
What is R-value?
Resistance to heat flow.
Can I layer insulation?
Yes, increases total R-value.
Does material matter?
Yes, R-value per inch varies.