IPv4 Subnet Calculator

Calculate IPv4 subnets instantly

IP Address

Supports CIDR notation like 192.168.1.0/24

CIDR Prefix (1-32)

Network Address

Broadcast Address

Subnet Mask

Wildcard Mask

Usable Host Range

Total IPs

Usable IPs

📚 Learn More

Want to understand what all this means? Read our guides:

What is a Subnet Mask?
CIDR Notation Explained
Private vs Public IP Addresses
Understanding Subnets
← All Guides