Acoustic Window Calculator
Estimate how much outside noise a window will block and the indoor noise level you can expect. Pick the noise source, glazing, sealing and size for a live dB reduction and comfort verdict. Indicative India 2026 — real performance also depends on walls, doors and gaps.
Your situation
Glazing is rated by Rw (weighted sound reduction). Sealing and size shift the effective reduction by a few dB. A 10 dB drop sounds roughly half as loud. Estimates only — flanking through walls, doors and gaps sets a real-world ceiling.
Estimated noise reduction
0 dB
70 dB outside → about 38 dB inside
Indoor level
38 dB
Comfort
Comfortable
Relaxed living and conversation.
Outside source
70 dB
Effective reduction
32 dB
glazing + seals + size
Indoor dB by glazing
Quieter rooms by design
DesignAI specs windows — glazing, seals and layout — to keep your rooms calm against your street's noise.
Related Guides — Deep-dive reading
Acoustic Glass for Homes in India: Quieting Road, Rail and City Noise
How laminated acoustic-PVB glass in an asymmetric DGU cuts traffic, rail and city noise, what the decibel ladder really delivers, and why sealing the whole window matters more than pane count.
Windows & GlazingFloor-to-Ceiling Windows (India): Maximum Light, and the Heat Trade-Off
Full-height glazing for Indian homes — how to win the daylight and view without losing the energy code, comfort or safety.
Windows & GlazingChild-Safe Window Design in India
Fall prevention, cordless blinds and safe glass for homes with young children
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