IP Subtraction & Mask Converter
Difference between two IP addresses, corresponding CIDR blocks, and decimal/hex/binary conversion.
1. IP address difference and range count
Numeric difference
1.021
Total addresses in range
1.022
Minimum CIDR blocks
18
CIDR block aggregation:
10.0.0.1/3210.0.0.2/3110.0.0.4/3010.0.0.8/2910.0.0.16/2810.0.0.32/2710.0.0.64/2610.0.0.128/2510.0.1.0/2410.0.2.0/2410.0.3.0/2510.0.3.128/2610.0.3.192/2710.0.3.224/2810.0.3.240/2910.0.3.248/3010.0.3.252/3110.0.3.254/32
2. Subnet mask format converter
CIDR prefix:/26
Dotted decimal
255.255.255.192
Wildcard mask
0.0.0.63
Hexadecimal
0xFF.FF.FF.C0
Binary (32 bits)
11111111.11111111.11111111.11000000
Host capacity
62 hosts
How to use this tool
Compare two IPv4 addresses or convert a subnet mask between decimal, binary and hexadecimal representations. Numeric distance helps you check address ranges.
Worked example
The difference between 192.168.1.10 and 192.168.1.1 is 9. This is the numeric distance between addresses, not a count of active devices.
Interpreting the result
Do not confuse address difference with an inclusive address count or the number of usable hosts in a subnet.