Subnet Calculator
Calculate network subnet details including network address, broadcast address, usable host range, and subnet mask from an IP address and CIDR prefix.
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How to use this tool?
- 1 Enter the requested data in the fields above carefully.
- 2 Click the calculate button to process the information instantly.
- 3 Analyze the detailed result and the formula explanation presented below.
- 4 You can print, share, or even embed the calculator on your own site for free.
Unlike traditional static calculators, our tools adapt to specific user needs. They include detailed explanations of the formulas used, ensuring transparency in results. Furthermore, our design is focused on user experience, eliminating distractions and focusing on what really matters: your data and conclusions.
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Frequently Asked Questions
A subnet mask is a 32-bit number that divides an IP address into network and host parts. It is used to identify which part of an IP address is the network and which part is the host.
CIDR (Classless Inter-Domain Routing) notation is a compact way to specify an IP address and its subnet mask, e.g., 192.168.1.0/24. The number after the slash is the prefix length, indicating how many bits are used for the network portion.
A /24 subnet has 256 total addresses, but the network address and broadcast address are reserved, leaving 254 usable host addresses.
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