Pathfinder provides a IPv6 network calculator to handily gather information for a subnet right from the application.
Select the IPv6 Network Calculator option from the network and services section.
You can calculate IPv6 network parameters here.
The IPv6 network calculator can calculate different parameters of your IP network like network class, IP address, subnet mask, subnet bits and maximum number of hosts.
Fill out the IPv6 IP address in the IPv6 field and select the prefix.
The parameters for the given network will be calculated and displayed in their respective fields.
Click on OK to close the IPv6 network calculator.