kubernetes
Hetzner Kubernetes Cost Calculator
Calculate the exact monthly cost of a Kubernetes cluster on Hetzner Cloud using verified server pricing — cx23, cx33, cx43, cax21, cax31, ccx23.
Hetzner Cloud Server Types for Kubernetes
Hetzner offers two main CPU architectures for cloud servers: Intel/AMD (cpx, cx) and ARM (cax). Both are fully supported by Kubernetes.
ARM vs x86 for Kubernetes
ARM (cax) servers are 30–40% cheaper for the same RAM/CPU specs. The tradeoff: not all container images are published as multi-arch. Most popular images (NGINX, Prometheus, Grafana, etc.) are multi-arch and work fine on ARM. Check before deploying proprietary or niche workloads.
Dedicated vs Shared CPU
- ›cx / cax = shared vCPUs (burst workloads, cost-optimized)
- ›ccx = dedicated vCPUs (consistent performance, higher cost)
For Kubernetes control planes, shared vCPU (cx33) is typically sufficient — etcd and the API server don't need dedicated cores. For worker nodes handling CPU-intensive workloads, consider ccx23/ccx33 (dedicated vCPU).
Frequently Asked Questions
What is the cheapest Hetzner Kubernetes setup?
A single-node k3s or kubeadm cluster on a cx23 (€3.99/mo) is the absolute minimum. For a multi-node dev cluster: 1× control plane (cx33 €6.49) + 2× workers (cx33 €6.49 each) costs ~€19.50/mo.
Is Hetzner Cloud reliable for production Kubernetes?
Yes. Hetzner is used in production by many companies for internal workloads. Their SLA is 99.9% uptime. For critical public-facing services, use the HA setup with 3 control planes and 2 LB nodes.
Related Tools
Related Guides
kubernetes
Hetzner vs DigitalOcean for Kubernetes in 2025: An Honest Comparison
Hetzner is 3–5× cheaper than DigitalOcean for equivalent Kubernetes compute. But DO has managed K8s, better global coverage, and a larger app marketplace. Here's when each is the right choice.
kubernetes
Kubernetes Certificate Renewal: What Breaks and How to Fix It
kubeadm certificates expire after 1 year. Here's what actually breaks, how to check expiry, and the exact commands to renew before your cluster goes read-only.
kubernetes
Self-Hosted Kubernetes on Hetzner Cloud: Complete Setup Guide (2025)
A practical guide to running a production-grade HA Kubernetes cluster on Hetzner Cloud using kubeadm, HAProxy, Keepalived, and Longhorn — at a fraction of managed K8s cost.