Subnet Calculator
What is Subnetting?
🌱 New to this?Try our example of dividing a small office network into 4 subnets
🎯 Advanced user?Enable advanced mode for VLSM and detailed subnet analysis
Common Subnetting Scenarios
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Small Office
192.168.1.0/255.255.255.0Divide a network into departments (Sales, IT, Admin, etc.)
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Campus Network
10.0.0.0/255.255.0.0Separate networks for different buildings or facilities
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Branch Offices
172.16.0.0/255.255.0.0Individual networks for each branch location
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Understanding Subnetting
What is Subnetting?
Subnetting is the process of dividing a network into smaller, more manageable pieces. It helps optimize network performance, improve security, and simplify administration.
Key Concepts
- Network ID: The first address in each subnet
- Broadcast: The last address in each subnet
- Usable Range: Addresses available for devices
- Subnet Mask: Defines subnet boundaries
Common Use Cases
- Departmental networks
- Geographic separation
- Security isolation
- Resource optimization