Calculatrice de Sous-réseau & CIDR

Calculez les limites d'hôte, les plages utilisables, les masques et les ID réseau.

Computational Status

Analyse automatiquement les sorties d'outils et explique les résultats en français simple.

Configurer les Paramètres de l'Outil

IPv4 Address

CIDR Mask Prefix

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Learn more about how this tool works and standard configurations

CIDR (Classless Inter-Domain Routing) notation like /24 describes network size. /24 = 256 addresses.

A /24 subnet has 256 total addresses — 254 usable hosts (subtract network and broadcast).

Currently the calculator focuses on IPv4 subnet math. IPv6 support is coming soon.