IP Subnet Calculator — CIDR and Network Calculator
Free IP subnet calculator. Enter an IPv4 address and CIDR prefix to calculate network address, broadcast address, subnet mask, host range, and number of usable hosts.
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How to Use This IP Subnet Calculator
- Enter an IPv4 address.
- Enter the CIDR prefix (e.g. 24).
- See network, broadcast, and host range.
Common Use Cases
- Calculate subnet for network configuration
- Find usable hosts in a /24 network
- Plan IP address allocation for a LAN
Frequently Asked Questions
This tool is for informational purposes only. Read our disclaimer.
Need help with this tool? help@bodhins.com
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