Data Center Calculators

34 free data center calculators in Networking.

100G to 400G Upgrade CalculatorConsolidate 100G ports into 400G: port count saved, capacity delivered and power per gigabit improvement.
40G to 100G Migration CalculatorPlan a 40G to 100G migration: ports needed, capacity gain and access ports gained through 4×25G breakout.
Cable Count CalculatorCount fabric and access cables for a leaf-spine build, including a spares allowance.
Cable Length DCCalculate structured cabling length requirements between racks in a data center.
CRAC CapacityCalculate required CRAC unit cooling capacity for a data center's total heat load.
Data Center EfficiencyCalculate overall data center energy efficiency combining power, cooling and IT load metrics.
Data Center Network Health Score CalculatorScore a data centre fabric out of 100 on utilisation, oversubscription, availability and drop rate.
DC Gateway Capacity CalculatorCount the border gateways a data centre needs based on throughput, NAT session scale and redundancy.
DCI Bandwidth CalculatorSize a data centre interconnect from daily change rate, replication window, RPO and distance latency.
East-West Traffic CalculatorEstimate server-to-server traffic inside a data centre and how much of it actually crosses the fabric.
EVPN Route CalculatorEstimate EVPN route-type counts and control-plane memory from VTEPs, MAC addresses, VNIs and prefixes.
Fabric Bandwidth CalculatorTotal spine capacity, bisection bandwidth and per-leaf share for a data centre fabric.
Fabric Expansion CalculatorCheck whether new leaves fit the existing spines, and count the spine ports, cables and bandwidth they add.
Fiber Pair CalculatorConvert link count and optic type into fibre strands, duplex pairs and MPO trunk cables required.
Generator RuntimeCalculate how long a backup generator will run on available fuel at a given load.
Leaf-Spine Capacity CalculatorSize a leaf-spine fabric: total fabric bandwidth, per-leaf uplink capacity and the resulting oversubscription.
Network Fabric Latency CalculatorAdd switch, serialisation, cable propagation and queueing delay to get end-to-end fabric latency.
Network Redundancy CalculatorDerive component availability from MTBF and MTTR, then the availability an N+M redundant group delivers.
North-South Traffic CalculatorSize the data centre border from north-south traffic volume, growth allowance and uplink speed.
Oversubscription Ratio CalculatorCompare access bandwidth with uplink bandwidth to get the oversubscription ratio and the uplinks a target needs.
PDU LoadCalculate power distribution unit load and remaining capacity across connected circuits.
PFC Buffer CalculatorSize priority flow control headroom per port from link speed, cable length and pause response time.
Power Usage EffectivenessCalculate PUE, the ratio of total facility power to IT equipment power, for a data center.
Rack CapacityCalculate available rack unit space and equipment capacity for a server rack.
Rack CoolingCalculate cooling capacity required to dissipate heat load from a server rack.
Rack Port Density CalculatorWork out how many switch ports fit in a rack, the density per rack unit and the free U remaining.
Rack PowerCalculate total power draw and headroom for equipment installed in a server rack.
RoCE Network CalculatorSize a lossless RoCEv2 fabric for a GPU or storage cluster, including header efficiency and port count.
SAN Fabric CalculatorSize a Fibre Channel SAN: host-to-storage fan-out, switch count and buffer credits for long distance.
Storage Network Throughput CalculatorConvert IOPS and block size into storage network throughput and the number of links required.
Top-of-Rack Switch CalculatorCount top-of-rack switches for a row from server NIC ports, uplink reservations and dual-ToR redundancy.
Transceiver Compatibility CalculatorCheck a transceiver against link distance and optical loss budget to confirm the run will actually come up.
UPS RuntimeCalculate how long a UPS battery will sustain a given load before depletion.
VXLAN VNI CalculatorWork out how much of the 16.7 million VNI space a multi-tenant VXLAN design consumes.