Developer Tools
Subnet / CIDR Calculator — Free, No Upload, Browser-Based
🔒 Kjører i nettleseren din
Enter any IP address and CIDR prefix length to instantly see the network address, broadcast address, usable host range, subnet mask, wildcard mask, and total host count — all calculated in your browser. No IP address or network data is ever transmitted to a server, making it safe for inspecting internal or sensitive network ranges.
Slik bruker du dette verktøyet
- Skriv inn en IP-adresse og juster prefikslengdeglidebryteren eller skriv inn en CIDR-blokk som 10.0.0.0/8.
- Kalkulatoren viser umiddelbart nettverksadresse, kringkastingsadresse, nettverksmaske, jokertegnsmaske og vertsområde.
- Kopier en enkeltverdi med Kopier-knappen ved siden av hver resultatrad.
/
Prefix length/24
/0/8 Class A/16 Class B/24 Class C/32
Network
192.168.1.0/24
PrivateClass C
Network address
192.168.1.0
Broadcast address
192.168.1.255
Subnet mask
255.255.255.0 (/24)
Wildcard mask
0.0.0.255
First usable host
192.168.1.1
Last usable host
192.168.1.254
Usable hosts
254
Total addresses
256
All calculations happen in your browser. No IP addresses are transmitted.