---
title: "Subnet / CIDR Calculator - Free Tool | Bit Refinery"
url: "https://bitrefinery.com/tools/subnet-calculator"
description: "Calculate network address, broadcast, host range, and wildcard mask from any IPv4 CIDR notation."
lastmod: "2026-08-01"
source: "auto-generated from SSG HTML"
---

# Subnet / CIDR Calculator

Network & Connectivity

Calculate network address, broadcast, host range, and wildcard mask from any IPv4 CIDR notation.

IP Address or CIDR

Prefix Length: /24

/0/32

Common

### Address Details

Network Address192.168.1.0

Broadcast Address192.168.1.255

Subnet Mask255.255.255.0

Wildcard Mask0.0.0.255

First Usable Host192.168.1.1

Last Usable Host192.168.1.254

CIDR Notation192.168.1.0/24

IP ClassC

### Host Count

256

Total Addresses

254

Usable Hosts

### Binary Representation

Network

11000000101010000000000100000000

Mask

11111111111111111111111100000000

Broadcast

11000000101010000000000111111111