We only support IPv4 architecture currently.

Total permutation minus network and broadcast boundaries.

🌐

subnet-calculator,

Subnet Calculator

Calculate IPv4 and IPv6 subnet boundaries instantly.

✨

IPv4

Full CIDR compliance.

⚡

Fast

Bitwise evaluation.

🚀

Secure

No server pings.

IP Address

/CIDR

about,

About this tool

Calculate accurate IPv4 subnet configurations instantly. Input your IP address and CIDR prefix to determine network addresses, broadcast ranges, and total usable hosts.

how to use,

How to

STEP 1

Input IP

Type a valid ipv4 string.

STEP 2

Suffix length

Type /24 etc.

STEP 3

Results

Auto evaluates bounds.

glossary,

Glossary

CIDR: Classless Inter-Domain Routing blocks.
Subnet Mask: Masking boundary for domains.
Broadcast: Top boundary address.

faq,

FAQ

Q.IPv6?: We only support IPv4 architecture currently.
Q.Usable Hosts?: Total permutation minus network and broadcast boundaries.

use cases,

Use Cases

🌐 Network Arch

VPC bridging.

💻 Routing

Setting up static boundaries.

Related Tools

Network & InfrastructureView all

🔌

MAC Address Vendor Lookup

Identify device vendor from MAC address OUI

🌍

Check Global IP Address

Instantly find out your current public IP address

📡

DNS Record Checker

Check A, MX, TXT, CNAME records instantly

🔒

HTTP Header Checker

Check response headers & security diagnostics

📧

Email Header Analyzer

Trace routing paths and authentication results

🔐

SSL Certificate Checker

Check SSL expiry date and specific certification details

✅

SPF/DKIM/DMARC Checker

Verify email authentication following Gmail guidelines

🔍

Whois Lookup

Search and check domain registration and nameserver info

All Categories

Web & Developer Tools CSS Generators Image & Photo Tools Video & Audio Tools SEO & Marketing Network & Infrastructure Text Analysis & Processing Finance & Salary Tools Date & Calendar Tools Document & Business Tools Games & Events Life & Health Top Page

Send Feedback

Please let us know your thoughts to help us improve the tool.