Subnet Calculator
Tech CalculatorsCalculate network range, broadcast, and host limits for any IP.
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Network Address
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Broadcast Address
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Usable Host Range
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Total Usable Hosts
About This Tool
Comprehensive IPv4 subnet calculator to determine network address, broadcast address, usable host range, and total number of hosts based on IP and subnet mask.
Frequently Asked Questions
A subnet mask is a 32-bit number used to differentiate the network component of an IP address from the host component.
Usable hosts are calculated as 2^(32-CIDR) minus 2 (one for the network address and one for the broadcast address).
CIDR (Classless Inter-Domain Routing) represents the number of leading bits in the subnet mask, such as /24 for 255.255.255.0.
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