IP Subnet Calculator
Full IPv4 subnet breakdown from IP + prefix length.
Network
192.168.1.128/26
- Subnet mask
- 255.255.255.192
- Wildcard
- 0.0.0.63
- Broadcast
- 192.168.1.191
- Host range
- 192.168.1.129 – 192.168.1.190
- Usable hosts
- 62
- Class / Scope
- C · Private
How the IP Subnet Calculator works
The calculation follows the standard method used across the US — no shortcuts, no hidden assumptions. Here is exactly what happens behind the scenes:
Formula
network = ip AND mask ; hosts = 2^(32−prefix) − 2
Frequently Asked Questions
How does the IP Subnet Calculator work?
Enter your numbers above and results update instantly using standard formulas, computed entirely on your device.
Is the IP Subnet Calculator free to use?
Yes — completely free with no signup required, and it works on phones, tablets, and desktops.
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