होम
Tom Utilities

IPv4 सबनेट कैलकुलेटर

डेवलपर उपयोगिताएँ

किसी भी IPv4 CIDR ब्लॉक के लिए नेटवर्क, ब्रॉडकास्ट, मास्क, वाइल्डकार्ड और उपयोग योग्य होस्ट रेंज की गणना करें।

उपयोग कैसे करें

Calculate a subnet

Enter an address with a prefix such as 192.168.1.0/24. The tool computes every key value for that block.

  1. Enter an IPv4 address or CIDR block.
  2. Read the network and broadcast addresses.
  3. Copy the JSON result for scripting.

Usable hosts

For prefixes from /1 to /30 the first and last addresses are reserved, so usable hosts equal the total minus two. /31 and /32 are treated as point-to-point and single-host ranges.

अक्सर पूछे जाने वाले प्रश्न

What is a wildcard mask?

A wildcard mask is the bitwise inverse of the subnet mask. It is commonly used in access control lists.

How do I know if an address is private?

The tool flags 10.0.0.0/8, 172.16.0.0/12 and 192.168.0.0/16 as private networks.