Dynamic RT60 (Reverberation) Estimator

Enter a room's dimensions and an average surface absorption coefficient, and this estimates RT60 — how long it takes sound to decay by 60 dB, i.e. how "live" or "dead" the room will sound. It automatically switches from the Sabine to the Eyring equation for more absorptive rooms, where Sabine's assumptions break down. Use it to gauge whether a room needs acoustic treatment, extra EQ care, or fewer monitors on stage.

Length (m) Width (m) Height (m) Average absorption coefficient (0–1) Calculate