Inverse of RT60

Hi guys,
to set a reverb decay time, I usually use RT60 calculation passing a value in seconds to the algorithm in order to calculate the coefficient. Is there a way to do the opposite? I have an algorithm where the decay time parameter is in 0…1 range and I want to show the related value in seconds.

Thanks!

It depends on the algorithm used to generate the reverb. There is no one to one conversion. RT60 is just a measurement, nothing more.

Thanks Matthieu.