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Kubernetes HPA Replica Calculator

The formula the Kubernetes autoscaler actually runs: current replicas times current utilization over target utilization, rounded up, then clamped to your maximum. Enter live CPU numbers to read the replica count.

Every result on this page is pre-rendered with the default inputs, so the numbers are readable with JavaScript off. Results update as you type and nothing leaves your browser. Part of the Buildopsy engineering calculators.

The real Kubernetes autoscaler formula. Desired replicas equal current replicas times current utilization over target utilization, rounded up. Defaults scale 8 replicas at 72 percent toward a 60 percent target.

Live result · Desired replicas · The autoscaler formula, computed live.
Desired
10
replicas · current × util ÷ target
Replica mix
  • Current replicas
  • To add or remove
Runs locally · No data sent
Scale action
+2 to add
replicas to add
Cap status
within max 20
against max replicas

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