CIDR Range
Free CIDR Range calculator with clear step-by-step results.
About CIDR Range
Computes network, broadcast and host count for a CIDR range.
Formula
Formula
Network = IP masked by prefix; hosts = 2^(32−prefix) − 2
Worked example
With the default values below, CIDR Range returns Network Address of 192.168.1.0. Change any input above and every figure here is recalculated in your browser.
Inputs used
- CIDR
- 192.168.1.0/24
Results
- Network Address
- 192.168.1.0
- Broadcast Address
- 192.168.1.255
- Usable Hosts
- 254.00
Step by step
- 1Values used
- 2Formula
- 3Network Address= 192.168.1.0
- 4Broadcast Address= 192.168.1.255
- 5Usable Hosts= 254
- 6Subnet Mask= 4 items
Assumptions and limits
- The result is derived only from the single input listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How does this calculator work?
Computes network, broadcast and host count for a CIDR range.
Why does this matter?
Hosts excludes network and broadcast addresses.