A familiar situation
Prüfen Sie ein lokales Netzwerk, einen IP-Adressbereich oder die Hostzahl eines IPv4-Subnetzes.
How to use this calculator
- Enter ipv4 address, cidr prefix.
- Select Calculate to see the answer and its breakdown.
- Keep a scenario, change an input and compare the results.
Use consistent units and check the assumptions below before applying the result.
How ip subnet is calculated
Inspect an IPv4 address and CIDR prefix to determine its network, broadcast address, mask, and usable host range. This is arithmetic for conventional IPv4 subnets; /31 and /32 have special point-to-point and host semantics, which are identified in the result. 192.168.1.10/24 belongs to 192.168.1.0/24, whose broadcast is 192.168.1.255. The calculation validates each input and keeps its stated units explicit. No, this tool validates dotted-decimal IPv4 only. This is an estimate for the stated assumptions; confirm measurements and any applicable professional or local standards before relying on it.
network = IPv4 address AND CIDR mask192.168.1.10/24 belongs to 192.168.1.0/24, whose broadcast is 192.168.1.255.
Assumptions & useful context
The result depends on the values you enter and the method described above. Displayed numbers may be rounded; calculations use the unrounded values. Check that this model matches your situation before relying on it.
Frequently asked questions
Does it support IPv6?
No, this tool validates dotted-decimal IPv4 only.
Why are /31 and /32 different?
They are commonly used for point-to-point links or a single address, so ordinary network/broadcast host exclusions do not apply.