Calculate minimum, recommended N+1, and N+2 host counts for a VCF cluster based on your workload profile, host specification, VCF management overhead, and vSAN policy.
Your data stays on your device. All calculations run entirely in your browser — no data is sent to any VirtualBytes server.
Disclaimer: Results are estimates only. Always validate against VMware official sizing tools and your hardware vendor specifications before procurement. VirtualBytes accepts no responsibility for under-provisioned environments.
Quick presets
Workload profile
Number of VMs ?
vCPU / VM
RAM / VM (GB)
Storage / VM (GB) ?
Host specification
Physical cores ?
RAM / host (GB)
vSAN capacity / host (TB) ?
VCF overhead & ratios
VCF management overhead ?
CPU overcommit ratio ?
RAM overcommit ?
vSAN FTT policy ?
vSAN slack space
Configure and calculate
Set your workload and host spec on the left, then click Calculate.