Network Calculators - IP, Subnet & Bandwidth
Bandwidth Calculator
Calculate transfer times from file size and bandwidth. Estimate data usage, check caps, plan downloads. Supports all common speed units.
CIDR Calculator
Calculate subnets, IP ranges, and network addresses from CIDR notation. Find usable hosts, broadcast address, and wildcard mask. Essential networking tool.
Subnet Calculator
Calculate IP subnets from network requirements. Find optimal subnet mask, host ranges, network addresses. Essential for network planning.
Network Planning and Analysis Tools
Network calculators help administrators plan IP addressing schemes, calculate subnet divisions, estimate bandwidth requirements, and verify network configurations. These mathematical operations are tedious by hand and error-prone—automated calculators ensure accuracy and save time.
Subnet and CIDR Calculations
Subnet calculators convert between CIDR notation, subnet masks, and network ranges. Given a CIDR block like 192.168.1.0/24, they calculate the network address, broadcast address, first usable IP, last usable IP, and total host count. This is essential for planning network segmentation and VLAN assignments.
VLSM (Variable Length Subnet Masking) calculators help divide networks into subnets of different sizes, optimizing IP address allocation for departments or services with varying host requirements.
Bandwidth and Throughput Calculations
Bandwidth calculators estimate network capacity needs based on user counts, application types, and usage patterns. They help size internet connections, plan WAN links, and identify bottlenecks before they impact users.
Common Network Planning Tasks
- IP allocation: Divide a /16 corporate network into departmental /24 subnets
- Capacity planning: Calculate bandwidth needs for video conferencing across offices
- Troubleshooting: Verify that IP addresses fall within expected subnets
- Documentation: Generate network diagrams with accurate IP ranges and host counts