IP Addressing
IP/CIDR Converter
Convert between IP addresses, CIDR notation, subnet masks, wildcard masks, and binary representations. A multi-format IP address toolkit.
Input
Quick Examples
How to Use
- 1Enter an IP address in any supported format
- 2The format is auto-detected
- 3View all equivalent representations
- 4Click any row to copy to clipboard
Supported Input Formats
- Dotted decimal: 192.168.1.100
- CIDR notation: 192.168.1.0/24
- IP range: 192.168.1.1-192.168.1.254
- Binary: 11000000.10101000.00000001.01100100
- Hexadecimal: 0xC0A80164
- Integer: 3232235876
Common CIDR Blocks
| CIDR | Mask | Hosts |
|---|---|---|
| /8 | 255.0.0.0 | 16.7M |
| /16 | 255.255.0.0 | 65,534 |
| /24 | 255.255.255.0 | 254 |
| /30 | 255.255.255.252 | 2 |
| /32 | 255.255.255.255 | 1 |
Related Articles
CIDR Notation Explained: From /8 to /32
A visual breakdown of CIDR blocks and what each prefix length actually means.
6 min readIPv4 Subnetting Reference Guide
Quick reference for subnet masks, CIDR notation, and usable host counts.
4 min readWhy Your Subnet Calculator Gave the Wrong Answer
Common mistakes when using subnet calculators and how to avoid them.
4 min read