COMPUTER SCIENCE & DATA
Networking
IP Subnet Calculator
Calculate IPv4 subnets from CIDR or a mask: network and broadcast addresses, usable host range and count, wildcard mask, binary view and subnetting.
Bandwidth Calculator
Calculate how long a file takes to download or upload at your connection speed, or the speed needed for a deadline, with Mbps vs MB/s and overhead.
Ping Time to Distance Converter
Convert ping time to the maximum distance to a server, or distance to the minimum possible ping, using the speed of light in optical fiber.