Measure how much provisioned Kubernetes cluster capacity is actually used during a representative period. By combining average use, peak use, and allocated capacity, this calculator shows both routine utilization and peak headroom without treating a short spike as normal demand.
Average utilization = Average used ÷ Provisioned × 100
Peak headroom = Provisioned − Peak used
Average utilization describes routine consumption. Peak utilization and headroom show whether the same allocation can absorb the highest observed demand.
Use measurements from a representative window. CPU, memory, connections, or storage should be evaluated separately rather than mixed into one percentage.
52 average vCPU and 78 peak vCPU across 96 provisioned vCPU produce 54.17% average utilization, 81.25% peak utilization, and 18 vCPU of peak headroom.
Use a period that matches your invoice and a workload window representative of normal operations. Avoid mixing daily usage with monthly charges.
Yes. The formulas are provider-neutral, but you should enter costs, discounts, and units from the provider’s own bill or quote.
Enter net costs after recurring credits when comparing actual bills. Model temporary promotional credits separately so they do not distort a long-term estimate.
Invoices can include tiered rates, regional pricing, taxes, free allowances, minimum charges, and timing adjustments that this planning model does not reproduce.
Use average data for unit economics and routine utilization. Use peak data and an explicit safety buffer when the decision concerns capacity or resilience.
| Input type | How to use it |
|---|---|
| Cost or capacity | Use values from the same scope and period. |
| Percentage | Enter the displayed percent, such as 20 for 20%. |
| Planning horizon | Use whole months and revisit assumptions regularly. |