The N.A. Cleantime Calculator is a DHTML cleantime calculator, designed by N.A. members, for N.A. members.

The NACC uses the same formula we always use when we calculate cleantime in N.A. meetings, and assign keytags:

The NACC is completely free for anyone to use. It is designed specifically for N.A. members, it is being shared from a deep gratitude for N.A. and all it has done for us.