CIDR & Subnet IP Calculator

Calculate IPv4/IPv6 subnets, network/broadcast addresses, usable host ranges, and wildcard masks.

Full Tool

CIDR & Subnet IP CalculatorIPv4 & IPv6

Client-side subnets, network/broadcast math, binary visualizer, and VLSM breakdown.

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Presets:

IPv4 Address or CIDR Notatione.g. 192.168.1.50 or 10.0.0.1/16

CIDR Prefix/24

Prefix Slider (/24)

Usable Hosts

254

Total: 256 IPs

Network Address

192.168.1.0

CIDR: /24

Subnet Mask

255.255.255.0

Wildcard: 0.0.0.255

Network Class & Scope

Class CPrivate (RFC 1918)

Private Network (RFC 1918 - Class C)

Subnet Addressing Breakdown

CIDR Notation:

192.168.1.1/24

Network Address:

192.168.1.0

Broadcast Address:

192.168.1.255

First Usable Host:

192.168.1.1

Last Usable Host:

192.168.1.254

Subnet Netmask:

255.255.255.0

Wildcard / Inverse Mask:

0.0.0.255

IP Integer / Long Decimal:

3232235777

IP Hexadecimal:

0xC0A80101

IPv4-Mapped IPv6:

::ffff:192.168.1.1

6to4 Prefix (/48):

2002:c0a8:0101::/48

32-Bit Binary Representation

Network (24b) Host (8b)

IP Address Binary

11000000101010000000000100000001

Subnet Mask Binary

11111111111111111111111100000000

Network Binary

11000000101010000000000100000000

Broadcast Binary

11000000101010000000000111111111

Wildcard Binary

00000000000000000000000011111111

Usable Host IP Range:254 Hosts

192.168.1.1192.168.1.254

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