🌐

Kostenlos Subnet / CIDR Calculator

Calculate network address, broadcast, usable host range, subnet mask, and host count from any IPv4 address and CIDR prefix.

Runs in your browserNo sign-up, no pop-upsKeine Anmeldung erforderlichFür immer kostenlos

IPv4 address

Prefix

/0/8/16/24/32

254

Usable hosts

256

Total addresses

Network address192.168.1.0/24

Usable host range192.168.1.1 – 192.168.1.254

Broadcast address192.168.1.255

Subnet mask255.255.255.0

Wildcard mask0.0.0.255

Mask (binary)11111111.11111111.11111111.00000000

IP classC

Address typePrivate (RFC 1918)

IPv4 subnetting reference. /31 and /32 are handled per RFC 3021 (point-to-point and single-host). All math runs locally in your browser.

Optimize for your platform

Eingabe

Gib deinen Text oder deine Daten ein.

Verarbeiten

Sofort in deinem Browser verarbeitet. Kein Server, kein Warten.

Herunterladen

Speichere dein Ergebnis. Nichts wird gespeichert.

✓Completely free — no hidden costs, ever

✓No account, email, or login required

✓Runs entirely in your browser — no uploads

✓Works on any device — phone, tablet, desktop

✓Open and ad-supported, with no tracking

✓Loads fast, with no installation needed