Kubernetes Calculators
Cluster cost, node sizing, certificate management, and upgrade planning tools.
Kubernetes Cluster Cost Calculator
Calculate the monthly cost of running a Kubernetes cluster on Hetzner Cloud. Choose server types for control planes, workers, and load balancers with HA mode.
Kubernetes Node Sizing Calculator
Calculate the right number and size of Kubernetes worker nodes for your workloads. Supports Hetzner Cloud and Vultr with verified pricing.
k3s Resource Calculator
Calculate RAM and CPU requirements for a k3s cluster. k3s has 5–10× lower overhead than full Kubernetes — see exactly how much your server and agent nodes need.
Kubernetes Certificate Expiry Calculator
Calculate when your Kubernetes certificates expire and whether you need to renew them. kubeadm certificates are valid for 1 year — missing renewal breaks the cluster.
etcd Backup Size Estimator
Estimate the size of etcd snapshots and monthly backup storage for your Kubernetes cluster. Plan S3 storage costs for etcd backup retention.
Kubernetes Upgrade Path Planner
Plan your Kubernetes upgrade path from any version to any version. Kubernetes only allows upgrading one minor version at a time — calculate the number of hops and total time estimate.
Kubernetes Autoscaler Threshold Calculator
Calculate the right HPA (Horizontal Pod Autoscaler) CPU and memory thresholds for your Kubernetes workloads. Get absolute target values in millicores and MiB.
Temporal Workflow Resource Calculator
Calculate Kubernetes resource requirements for a self-hosted Temporal workflow engine. Size the History, Matching, Frontend, and Worker services plus the PostgreSQL persistence layer.