Subnet Calculator
Calculate IPv4 and IPv6 subnets with CIDR notation, VLSM support, and visual representations.
Enter IPv4 address (e.g., 192.168.1.0)
Calculating subnet...
Network Visualization
Network Portion
Host Portion
Network Information
Network Address
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Broadcast Address
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Subnet Mask
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CIDR Notation
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Host Information
Total Hosts
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Usable Hosts
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First Usable IP
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Last Usable IP
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Additional Details
IP Class
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IP Type
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Wildcard Mask
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Network Bits
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Binary Representation
IP Address (Binary)
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Subnet Mask (Binary)
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Network Address (Binary)
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Enter IPv6 address (e.g., 2001:db8::1)
Enter prefix length (0-128)
IPv6 Network Information
Network Address
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Expanded Address
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Compressed Address
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IPv6 Range
First Address
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Last Address
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Total Addresses
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Enter base network with CIDR (e.g., 192.168.0.0/16)
Enter number of subnets to create
Subnet Requirements
VLSM Allocation Table
| Subnet Name | Network | Subnet Mask | First IP | Last IP | Broadcast | Hosts Required | Hosts Available |
|---|