About IP Subnet Calculator — CIDR, Netmask & Host Count

Enter an IPv4 address and CIDR prefix to calculate the subnet mask, network address, broadcast address, first/last host IPs, and total usable host count.

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✨ Key Features of Our IP Subnet Calculator — CIDR, Netmask & Host Count

  • ✓CIDR calculator
  • ✓Subnet mask
  • ✓Network address
  • ✓Broadcast address
  • ✓First/last host
  • ✓Total hosts

📖 How to Use IP Subnet Calculator — CIDR, Netmask & Host Count

1

Enter IP/CIDR

Type an IPv4 address with CIDR prefix like 192.168.1.1/24.

2

View Results

See subnet mask, network, broadcast, host range, and count.

❓ Frequently Asked Questions

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