IPv4 Subnetting

Network Calculator Suite

Professional Subnetting & Network Planning Tools

A comprehensive suite of networking calculators designed for network engineers, IT professionals, and students. Calculate subnets, plan VLSM allocations, aggregate routes, and visualize binary representations with ease.

Available Tools

IPv4 Subnetting

Classical subnetting calculator with DHCP planning, ACL helpers, and gateway configuration options.

IPv6 Calculator

IPv6 address compression, expansion, and network notation with prefix length calculations.

VLSM Planning

Variable Length Subnet Mask planner for efficient IP address allocation across multiple networks.

Route Aggregation

Supernetting and route summarization tool for optimizing routing tables and reducing entries.

Binary Visualization

Bit-level visualization showing network and host portions in binary format for learning.

Get Started

Select a calculator from the sidebar to begin, or click on any tool card above to jump directly to that calculator.

About Network Calculator Suite

Quick Start

Select a calculator from the sidebar to begin. Each tool provides instant subnetting, routing, and network visualization.

Tools

IPv4
Classical subnetting with DHCP planning and ACL helper.
IPv6
IPv6 address compression and network notation.
VLSM
Variable-length subnetting for efficient allocation.
Supernet
Route aggregation and summarization.
Binary
Bit-level visualization of network/host bits.

Tips

  • Use RFC1918 ranges for lab networks: 10/8, 172.16/12, 192.168/16
  • Base prefix must be ≤ desired prefix for subnetting to work
  • VLSM plans should list host requirements from largest to smallest
  • All results can be copied to clipboard or exported as CSV

© 2025 Network Calculator Suite

Developer: Md Walidur Rahman — IT Expert, Network Engineer, AWS Cloud and Web tools developer.