Almost Perfect
Works great for 99% of what I use it for. It is missing ability to calculate subnet when borrowing bits from the host bits and the IP entered as 192.168.1.0/27 doesn’t seem to work mask is set to 255.255.255.238 and gives 2 hosts per subnet. Should be 8 subnets with 30 hosts and mask is 255.255.255.0. It would also be great to have the ability for the systems to calculate the number of subnets sometimes. But it’s still a fantastic free tool. Many many thanks for this.