Cost Estimate

Indicative monthly Hetzner Cloud costs for common cluster sizes.

All figures are list prices in EUR excluding VAT, current as of the Hetzner price adjustment of 15 June 2026. Hetzner bills hourly; the monthly figure is the cap you will not exceed. Always check Hetzner Cloud pricing before committing – prices changed several times during 2026.

Server types

KubeClaw defaults to the cost-optimized CX line (shared vCPU, x86). The CAX line offers the same resources on Ampere Arm cores, but is only available in the German and Finnish locations (fsn1, nbg1, hel1) and requires arm64 container images throughout the cluster.

Type	vCPU	RAM	NVMe	Monthly (excl. IPv4)
`cx23`	2	4 GB	40 GB	€5.49
`cx33`	4	8 GB	80 GB	€8.49
`cx43`	8	16 GB	160 GB	€15.99
`cx53`	16	32 GB	320 GB	€29.49
`cax11` (Arm)	2	4 GB	40 GB	€5.99
`cax21` (Arm)	4	8 GB	80 GB	€10.49
`cax31` (Arm)	8	16 GB	160 GB	€20.99
`cax41` (Arm)	16	32 GB	320 GB	€40.99

The CX22 generation is retired

Earlier revisions of this project defaulted to `cx22`. That generation (`cx22`/`cx32`/`cx42`/`cx52`) is no longer offered for new orders -- the current cost-optimized line is `cx23`/`cx33`/`cx43`/`cx53`. Existing servers keep their original pricing until they are rescaled or recreated.

The higher-performance CPX (dedicated AMD share) and CCX (fully dedicated) lines are considerably more expensive – cpx22 is €19.49/month and ccx13 is €42.99/month – and are rarely worth it for a learning or small-production cluster.

Additional costs

Item	Price
Primary IPv4 address	€0.50 per server per month
Block storage volume	~€0.0572 per GB per month
Private network	Free
Cloudflare Tunnel + Access	Free (up to 50 users)

IPv6-only is a real saving

KubeClaw provisions every node without a public IPv4 address, which avoids the €0.50 per server per month primary-IPv4 charge. On a five-node cluster that is €30/year, and it is the reason [NAT64/DNS64](/kubeclaw/docs/introduction/dns-and-nat64/) exists in this project.

Example: 2-node cluster

Component	Specification	Monthly Cost
Master control node (`cx23`, IPv6-only)	2 vCPU / 4 GB RAM	€5.49
Worker node (`cx23`, IPv6-only)	2 vCPU / 4 GB RAM	€5.49
Block volumes (10 GB each)	Hetzner CSI, 20 GB total	~€1.14
Private network	–	Free
Cloudflare Tunnel + Access	Up to 50 users	Free
Total		~€12.12/month

Scaling costs

Server cost only; add block volumes for any workload that needs persistent storage.

Configuration	Nodes	Server cost
Master-only (dev/learning)	1	€5.49
Master + 1 worker	2	€10.98
3 control + 2 workers (HA)	5	€27.45

Notes

The admin node (cx23, €5.49/month) is temporary. Set enable_admin_node = false once the Cloudflare Tunnel works, and the charge stops – see Quick Start.
Mixed server types are supported, so workers can be sized independently of the control plane. See Scale Up/Down.
Snapshots and backups are billed separately and are not included above.