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NetDash Toolkit
v3.0.1, view the changelog
  1. All tools
  2. Calculators
  3. Subnet Calculator

Subnet Calculator

Calculate network addresses, broadcast addresses, and host ranges for IPv4 and IPv6

Loading Subnet Calculator

More in Calculators

  • VLSM Planner
  • MTU Calculator
  • Bandwidth Calculator
  • Cable Calculator
  • Data Unit Converter
  • Uptime/SLA Calculator
NetDash Toolkit•Network engineering tools

Built with love by Sunny Patel

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© 2026 Sunny Patel. Free to use, MIT licensed. Most tools run offline and never leave your browser; the ones that send data name the host first, and cloud sync is opt-in.