IP Subnet Calculator
Calculate network range, broadcast address, and usable hosts instantly.
Configuration
📊 Results
Network Address
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Broadcast Address
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Subnet Mask
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Usable Host Range
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Total Usable Hosts
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Cheat Sheet: Common Subnets
| CIDR | Subnet Mask | Total Addresses |
|---|---|---|
| /32 | 255.255.255.255 | 1 |
| /30 | 255.255.255.252 | 4 (2 usable) |
| /24 | 255.255.255.0 | 256 (254 usable) |
| /16 | 255.255.0.0 | 65,536 |
| /8 | 255.0.0.0 | 16,777,216 |