$cidr-calc 10.0.1.0/24

CIDR Calculator

Enter a CIDR notation like 192.168.1.0/24 to instantly convert it to a subnet mask, calculate the full IP address range, and determine network boundaries. Get detailed results including network address, broadcast address, usable host count, and wildcard mask — everything you need for accurate IP address management and network planning.

Input

CIDR Notation

Common CIDR Blocks

/816.7M hosts

/1665,534 hosts

/24254 hosts

/2814 hosts

/302 hosts

CIDR Calculation Results

IP Address Range
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Network Address
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Broadcast Address
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Usable Hosts
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First Usable IP
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Last Usable IP
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Total Addresses
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Network Details

CIDR Notation-

Subnet Mask-

Wildcard Mask-

IP Class-

Binary Representation

Network (Binary)

Subnet Mask (Binary)

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