Subnet Calculator
Calculate subnet ranges from CIDR notation.
About the Subnet Calculator Tool
Calculate subnet ranges from CIDR notation. This free online tool runs entirely in your browser — no login, no installation, and no data is stored.
This tool is part of the Programming category on NumbersChecker. Browse all Programming tools or explore all 139 tools.
Related: cidr · subnet · network · mask
API usage
POST /api/subnet-calc
Content-Type: application/json
{
"text": "your input here"
}