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Hyper-V Virtualization Calculator

This calculator evaluates the number of hosts in a Hyper-V cluster for the given legacy server workload and host specification.

Physical servers to be consolidated (VM candidates): 

# of
CPU

1)
2)
3)
4)
Cores per
CPU

1)
2)
3)
4)
CPU Speed
(GHz)

1)
2)
3)
4)
Aver. CPU
util. (%)

1)
2)
3)
4)
RAM
(GB)

1)
2)
3)
4)
Aver. RAM
util. (%)

1)
2)
3)
4)
## of
servers

1)
2)
3)
4)

Host specification: 

# of CPUs
Cores per CPU
CPU speed (GHz)
RAM (GB)
Target host CPU utilization (%):
Target host memory utilization (%):
Hypervisor CPU overhead per host (Ghz):
Hypervisor memory overhead per host (GB):
CPU virtualization overhead (%):
Memory virtualization overhead (%):

VM Workload:
Total workload CPU usage (GHz):28
Total workload memory usage (GB):160
Total number of VMs (1 phys. server = 1 VM): 30
Total Virtual Proc. (1 phys. core = 1 VP): 80
Average VM : 
  - Number of Virtual Processors:2.67
  - Memory usage (GB):5.33
Hosts & Cluster: N hostsN+1 hosts
Number of hosts: 12
Total number of physical CPUs: 24
Total number of physical CPU cores: 1632
Total Virtual Processors: 8080
Virtual Processors per physical CPU core ratio: 5 : 1  2.50 : 1 
Average number of Virtual Processors per host: 8040
Total cluster CPU capacity (GHz): 43.286.4
Total hypervisor CPU overhead (GHz): 2.75.4
Cluster CPU capacity available for VMs (GHz): 40.581
CPU capacity required for VM workload (GHz):  30.830.8
Average host CPU utilization (%): 76.05 38.02
Total cluster memory capacity (GB): 256512
Total hypervisor memory overhead (GB): 24
Cluster memory capacity available for VMs (GB):  254508
Memory capacity required for VM workload (GB): 192 192
Average host memory utilization (%) 75.59 37.8
Average number of VMs per host: 3015