VM sizing calculator

Enter your estate and get a host count with the reasoning shown, not a black box. The result URL is shareable, and nothing here asks for your email. The assumptions behind the math are covered in the virtualization sizing guide.

VM count today

Average vCPU per VM

Average RAM per VMGB

Storage per VMGB

Growth to plan for%

vCPU : physical core ratio

N+1: keep one host of headroom for failure and maintenance

Recommendation

4 hosts

2-socket 48-core hosts with 512 GB RAM and ≈17 TB usable flash each. Your binding constraint is memory.

Sizing reasoning
Projected VMs (+30% growth)	78
RAM needed (no overcommit)	1,248 GB → 3 hosts
Physical cores at 4:1	78 cores → 1 hosts
Usable storage	19.0 TB → 2 hosts (local flash; a shared array changes this)
Cluster minimum	2 hosts
N+1 headroom	+1 host

This is planning math, not a quote. Real sizing accounts for your failure domains, licensing, and storage architecture; we check all three before anything is ordered.