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Calculators

IPv4 Subnet Calculator

Network, broadcast, host range, and netmask for any IPv4 CIDR block, computed live as you type.

Data Size Converter

Convert between decimal (kB, MB, GB) and binary (KiB, MiB, GiB) data units in one table.

Practical calculators for everyday technical work, running entirely in your browser. More are planned here as they prove useful.