Subnet Calculator

Calculate IPv4 subnets, network addresses, broadcast addresses, and host ranges

Network Details

Calculate Using

IP Address

CIDR Prefix

Range: 0-32

Network Address

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Broadcast Address

—

Subnet Mask

—

CIDR Prefix

—

Usable Hosts

—

Total Hosts

—

First Usable: — Last Usable: —

Calculate to see binary representation.

📊 CIDR Reference

/24 = 255.255.255.0 (254 hosts)
/16 = 255.255.0.0 (65,534 hosts)

🔢 Binary Prefix

/24 = 11111111.11111111.11111111.00000000
Network bits: 24, Host bits: 8

💡 Special Addresses

Network Address: All host bits 0
Broadcast: All host bits 1

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