IP Subnet Calculator
Calculate subnet mask, network/broadcast, and usable range from IP and prefix.
Input
Results
CIDR192.168.1.10/24
Subnet Mask255.255.255.0
Wildcard Mask0.0.0.255
Network Address192.168.1.0
Broadcast Address192.168.1.255
First Usable Host192.168.1.1
Last Usable Host192.168.1.254
Total Addresses256
Usable Hosts254
Address Range192.168.1.0 - 192.168.1.255
IP ClassC
Network TypePrivate Network
IP Binary11000000.10101000.00000001.00001010
Mask Binary11111111.11111111.11111111.00000000
IP HexC0A8010A
About This Tool
Designed for network planning and operations, this IPv4 subnet calculator outputs subnet mask, wildcard mask, network/broadcast address, and usable host range with counts. Works offline with all calculations done locally in your browser.
Features
- 🧮 One-Click Calc: Enter IPv4 and prefix to get full subnet info
- 🧱 Core Params: Subnet mask, wildcard, and CIDR generated instantly
- 📡 Address Insight: Network and broadcast addresses shown clearly
- 📍 Range View: Usable host range and counts at a glance
- ⚡ Instant Update: Results refresh as you type
- 🛡️ Local Only: All calculations run in your browser, no uploads