Engineering Tools
Single-purpose calculators for network infrastructure engineers. Fast, accurate, and built for field use.
Subnet Calculator
Calculate network addresses, broadcast, host ranges, and subnet masks for any CIDR block.
IPv4
CIDR Calculator
Expand CIDR notation into full subnet details. Wildcard masks, network classes, and more.
CIDR
VLAN Planner
Plan and auto-assign subnets to VLANs based on host count requirements.
Layer 2
PoE Budget Calculator
Calculate total power draw from PoE devices against your switch's power budget.
Power
Cable Run Calculator
Verify cable run distances against IEEE 802.3 standards for Cat, fiber, and coax.
Physical
Rack Unit Calculator
Plan rack space, visualize equipment layout, and track U utilization across your enclosures.
Physical