IP Subnet Calculator
Calculate subnet details from any CIDR notation
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How to Use This Tool
- Enter IP/prefix like 10.0.0.0/8.
- Calculator derives mask and ranges.
- Copy results for network planning.
About This Tool
Enter a network in CIDR format (e.g. 192.168.0.0/24) to instantly compute the subnet mask, network address, broadcast address, and usable IP range.
Common use cases
- •Check your public IP before remote work or gaming
- •Verify geolocation and ISP for troubleshooting
- •Look up suspicious IPs in abuse reports
Frequently Asked Questions
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