# IPv4 Subnet Calculator

> Break an IPv4 CIDR block down into its network and broadcast address, usable host range, mask, and size.

- URL: https://prismkit.hippodev.app/en/network/ipv4-subnet-calculator
- Category: Network
- Runs: client-side, no upload

This is an interactive tool — open https://prismkit.hippodev.app/en/network/ipv4-subnet-calculator to use it.