AbraCalc

RT60 Reverb Decay for a Living Room

Calculate the RT60 for a furnished living room used as a home studio.

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How to use this tool

  1. Enter room volume, total surface area and avg absorption coeff in the fields above.
  2. Results update instantly as you type — or click Calculate.
  3. Read your rt60 decay time and the full breakdown beneath it.

A furnished living room has moderate absorption from sofas and carpets, giving an RT60 typically between 0.3 and 0.6 seconds.

Frequently asked questions

What is RT60?
RT60 is the time (in seconds) for a sound to decay by 60 dB after the source stops. A concert hall typically has RT60 of 1.5–2.5 s; a recording studio aims for under 0.5 s.
What is Sabine's formula?
RT60 = 0.161 × V / A, where V is room volume (m³) and A = surface area × average absorption coefficient.