Network Engineering & IT Tools

Tools for network administrators, IT professionals, and students.

IP Subnet Calculator

Calculate subnet details like network, broadcast, and host range.

Convert an IPv4 address to its binary representation.

Calculate IPv6 subnet ranges from a given prefix.

Calculate network details from an IP address and CIDR prefix.

Estimate the best-case round-trip time (RTT) over a distance.

Calculate the percentage of lost packets in a transmission.

Understand how DNS TTL values affect propagation time.

Convert downtime (minutes, hours) to an uptime percentage.