Estimate RT60 reverb time from room size and absorption.
Sabine's equation relates reverb time to the room's size divided by how much absorbing material covers it. A small, absorptive room rings briefly while a large hard room rings for seconds, guiding all acoustic treatment choices.
Room Reverberation Time
RT60 = 0.161 x volume / (surface area x absorption)
RT60 = 0.161 x volume / (surface area x absorption) Sabine's equation relates reverb time to the room's size divided by how much absorbing material covers it.
A small, absorptive room rings briefly while a large hard room rings for seconds, guiding all acoustic treatment choices.
This calculator takes 4 inputs: Room length, Room width, Room height, Average absorption. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.