Subnet Calculator

Fast, accurate subnet calculator for networking engineers.
Features
- Generate class-based subnet lists
- Calculate broadcast address
- Get network address
- Compute wildcard mask
- Detect IP network class
- Show valid subnet octet range
- Convert IP to hexadecimal
- Count subnet mask bits
- Calculate usable hosts per subnet
- Find total possible subnets
- Display subnet bitmap view
- Generate CIDR netmask
- Show CIDR notation format
- Determine CIDR network route
- Calculate CIDR IP range