Calculateur CIDR
Calculate CIDR notation, subnet masks, network addresses, and IP ranges for network planning.
CIDR Notation
Common Subnet Sizes
| CIDR | Usable Hosts | Note |
|---|---|---|
| /8 | 16,777,214 | Class A |
| /16 | 65,534 | Class B |
| /24 | 254 | Class C |
| /25 | 126 | |
| /26 | 62 | |
| /27 | 30 | |
| /28 | 14 | |
| /29 | 6 | |
| /30 | 2 | Point-to-point |
| /32 | 1 | Host route |
Fonctionnalites
[AUTO_TRANSLATED:fr] CIDR Notation
[AUTO_TRANSLATED:fr] Support for all CIDR prefixes /0 to /32
[AUTO_TRANSLATED:fr] IP Range
[AUTO_TRANSLATED:fr] Calculate first and last usable hosts
[AUTO_TRANSLATED:fr] Instant Calculation
[AUTO_TRANSLATED:fr] Results update immediately
[AUTO_TRANSLATED:fr] Quick Reference
[AUTO_TRANSLATED:fr] Common subnet size table