Tools
IP Calculator
Formats, class, scope and subnet math for any IPv4 address.
IP Calculator
Numeric forms
- Decimal
- 3232235776
- Hex
- 0xC0A80100
- Binary
- 11000000.10101000.00000001.00000000
Class & scope
Class C Default mask: /24 Private (RFC 1918)
Not routable on the public internet — used inside LANs and behind NAT.
Subnet
Network
192.168.1.0/24
Mask
255.255.255.0
Wildcard
0.0.0.255
Broadcast
192.168.1.255
Host range
192.168.1.1 – 192.168.1.254
Usable
254 / 256
- Mask · Hex
- 0xFFFFFF00
- Mask · Binary
- 11111111.11111111.11111111.00000000
About this tool
Convert any IPv4 address to decimal, hex and binary, see its class and special-use scope (private, CGNAT, loopback), and work out the subnet, mask and host range in one place.
Queries go straight from your browser to a public resolver over HTTPS. We do not proxy them, cache them or keep a log of what you looked up.