// multi-utility computation suite · offline · instant · precise
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│ computation suite │
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dev.subnet-host-calculator Calculator
Calculates the number of usable hosts in a subnet from the CIDR prefix length, reserving network and broadcast addresses. A /24 subnet has 256 addresses: 1 network address, 1 broadcast, and 254 usable hosts — each additional prefix bit halves the host count.
Inputs
Cidr Prefix
Reference formula or conversion factor shown for context.
Reserved Hosts
Reference formula or conversion factor shown for context.
Results
usable host addresses
Reference formula or conversion factor shown for context.
total addresses in subnet
The combined total across all inputs and components.
usable (excl. network+broadcast)
Sample size or count used in the calculation.
network + broadcast reserved
Sample size or count used in the calculation.
subnet mask octets
Sample size or count used in the calculation.
hosts = 2^(32-cidr) - 2
Reference formula or conversion factor shown for context.