CIDR to IP Range Converter
Network & Ops · Free Online Tool
Convert CIDR block to start/end IP range.
- Network Address
- 192.168.0.0
- Broadcast Address
- 192.168.0.255
- First Usable Host
- 192.168.0.1
- Last Usable Host
- 192.168.0.254
- Subnet Mask
- 255.255.255.0
- Usable Hosts
- 254
Full Subnet Info
Network, broadcast, mask, and usable host count all in one view.
All Prefixes
Supports every CIDR prefix from /0 to /32, including /31 point-to-point links.
Copy Any Field
Click the copy icon next to any value to use it elsewhere.
How to Use CIDR to IP Range Converter
- 1Enter the URL, IP address, or network parameter to look up.
- 2Click the lookup or test button.
- 3Review the detailed results in the output panel.
- 4Use the information for your network operations.
Features
- ✓100% free — no signup, no subscription, no ads
- ✓Runs entirely in your browser — data never leaves your device
- ✓Fast and lightweight — instant results
- ✓Cross-platform — works on desktop, tablet, and mobile
Frequently Asked Questions
Are network lookups real-time?
Yes, IP lookups, DNS queries, and HTTP tests perform live network requests to provide current data.
Is my IP address logged?
The IP Lookup tool queries public geolocation APIs. We do not store your IP address or lookup history.
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Learn the concept
Learn the concept
Understand the programming ideas behind this tool.