SmartInsulationCalculator

Soundproofing & Acoustic Insulation Calculator

There's a difference between blocking sound (mass and cavity insulation) and treating echo (panels on the surface). This sizes both.

Your project

Covers cuts, compression and odd bays. 10% is the usual default.

Your results

Wall surface area
416 sq ft
Ceiling area
168 sq ft
Acoustic panel coverage
92 sq ft

22% of wall area

Panels required
101 panels
Mineral wool batts for cavities
642 sq ft

Safe'n'Sound style, inside the framing

Expected assembly rating
STC 45–50
Estimated material cost
$939

Estimates use typical US material and labor pricing. Confirm quantities against the coverage chart on the bag before you buy.

Gear for this job

As an Amazon Associate we earn from qualifying purchases. Product links on this page may earn us a commission at no extra cost to you.

How this calculator works

  • Wall area = 2 × (length + width) × ceiling height
  • Panel coverage = wall area × treatment percentage for the room type
  • Panels = coverage × (1 + waste %) ÷ panel square footage

Frequently asked questions

Does insulation actually stop sound?

Cavity insulation like mineral wool kills the resonance inside a wall and typically adds 4 to 6 STC points. Big gains come from mass (a second layer of drywall) and decoupling (resilient channel or clips).

How many acoustic panels do I need?

Treating 15 to 25% of the wall surface handles most rooms. Studios go to 35%. Start with first reflection points and the wall behind you.

Related calculators

Wall InsulationOpen calculator Batt & Roll QuantityOpen calculator Insulation CostOpen calculator

Free app

Run this calculator on your phone

Offline-ready, saves your results, no signup.

Get it onGoogle PlayComing soon to theApp Store

Wall surface area

416 sq ft

See all