Subnet Calculator

• Place IPs from a range into A and B, [TAB] away or hit [ENTER] and the other fields will update show the minimal subnet required for both.
• The subnet may be changed manually by editing the middle fields. The reference IP for any subnet changes is IP [A].
• Magic happens if a subnet /xx reference is included in A or B.
• Magic also happens if a negative number is entered in A, B or C.
• The [v] buttons copy their respective IPs into the formatter below.

IP Formatter

• Change any field and [TAB] away or hit [ENTER] to update the others
• Buttons A, B and C copy the IP field to the relevant field in the subnet form.