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Subnet / IP Calculator
Subnet mask, network & broadcast, usable host range and CIDR — for IPv4.
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PoE Power Budget
Check if a switch PoE budget supports your cameras, phones and access points.
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UPS Runtime
Estimate UPS backup time, or size the battery Ah for a target runtime.
Open tool →❄️
Server Room Cooling
Size the AC for an IT room in BTU/hr, kW and cooling tons, with a safety margin.
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Bandwidth Calculator
Estimate the internet speed your business needs from users and activities.
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Fiber Loss Budget
Compute fiber link loss and pass/fail it against your optical power budget.
Open tool →