Network
IP Subnet Calculator
Calculates the network address, broadcast address, usable host range, subnet mask and host count from an IPv4 address and CIDR prefix. All calculations run locally in the browser.
Calculate IPv4 network
Enter an IPv4 address and a CIDR prefix. Optionally export the result as text, Markdown or CSV.
Calculation ready.
Overview
Output
Subnet table
| Property | Value | Note |
|---|
Next subnets
| No. | Network address | Broadcast | Host range |
|---|
Notes
The calculator works with IPv4 addresses and CIDR prefixes from /0 to /32. /31 and /32 are special cases: /31 is often used for point-to-point links, while /32 describes a single address.