Blockchain Node Sizing Calculator
Estimate hardware for a blockchain node- ✓Ethereum runs two clients (execution + consensus); sizing covers both.
- ✓ARM64 compatibility: supported.
- △This profile likely exceeds the limits of a typical entry-level VPS free tier.
Planning estimate — benchmark your real workload before purchase.
Introduction
The Blockchain Node Sizing Calculator produces a planning estimate for running a node for Ethereum, Bitcoin Core, Solana/Agave, Cosmos SDK (CometBFT) or Polkadot. You choose the chain, client, architecture, node type (pruned, full, archive, RPC or validator), environment, retention, expected RPC load, growth window and a safety margin.
The output is deliberately expressed as minimum and recommended ranges. Node requirements change as chains grow and clients evolve, so the tool shows the assumptions, the growth estimate and the date of the underlying data rather than pretending to be exact.
Objective
- Estimate minimum and recommended CPU, RAM and storage for the selected profile.
- Separate storage type (SSD vs NVMe), bandwidth and growth over the chosen window.
- Flag ARM64 compatibility and profiles that exceed typical entry-level free-tier limits.
- Explain execution + consensus client pairing for Ethereum and the high hardware bar for Solana validators.
- Never calculate profit, ROI, coin appreciation or validator eligibility.
Inputs
- Blockchain (Ethereum, Bitcoin Core, Solana/Agave, Cosmos SDK, Polkadot).
- Client and architecture (x86_64 or arm64).
- Node type: pruned, full, archive, RPC or validator.
- Environment (lab, personal, production), retention, estimated RPC requests per second, growth window in days and safety margin in percent.
How it works
The tool combines a per-chain baseline (official documentation ranges) with multipliers for node type, environment and safety margin. Storage and growth scale with the node type: archive nodes multiply storage by a large factor because they keep historical state; pruned nodes keep a small, bounded store.
Bandwidth is derived from the chain baseline and the expected RPC load. ARM64 support comes from the client ecosystem for that chain (fully supported for Ethereum and Cosmos, partial for Bitcoin, not supported for Solana's high-end profiles).
The classification (lab, acceptable, recommended, high) reflects the environment and node type: production validators and archive nodes are 'high', production full/RPC nodes are 'recommended', personal nodes are 'acceptable' and lab setups are 'lab'.
The recommendation is compared against typical entry-level free-tier limits and flagged when exceeded.
Testable example
Try it — the analysis runs locally in your browser.
Example
Blockchain: Ethereum Node type: full (execution + consensus) Environment: production Growth: 90 days · Margin: 20%
Expected output
CPU: 6–10 cores (min–recommended) RAM: 24–40 GiB Storage: 2 400–3 600 GiB (NVMe) Growth: ≈450 GiB over 90 days Bandwidth: ~100 Mbps ARM64: supported Classification: recommended
Reading the output
- Use the recommended column for production; the minimum column is the floor below which the node will struggle or fail to keep up.
- The growth estimate tells you how much disk the node will consume over the window you chose — budget headroom above it.
- A 'high' classification means the profile demands top-end hardware and careful operations; do not under-provision a production validator.
- Treat the result as a starting point, then validate against the official requirements linked on this page and benchmark your real workload.
Risks
- Under-provisioned storage is the most common node failure: the chain outgrows the disk and the node stalls.
- Archive nodes grow without bound; plan a retention and pruning strategy before you start.
- Requirements change: a chain upgrade or client change can move the baseline overnight.
Limitations
- This is a planning estimate assembled from public documentation, not a guarantee and not a benchmark.
- It does not model memory latency, disk IOPS, network quality or client-specific behaviour.
- It never estimates profit, ROI or token appreciation, and it does not promise validator eligibility.
Official references
FAQ
Why are there minimum and recommended values instead of one number?
Node requirements are intervals, not points: they depend on client, chain state and workload. Presenting a single exact number would be false precision. The ranges come from official documentation and are updated when the underlying data changes.
Can I run an Ethereum node on a free-tier VPS?
An archive node generally will not fit free-tier storage. A full node can start on a mid-range free tier, but chain growth will outpace the included storage, so you would need to attach paid storage.
Is ARM64 supported for these chains?
Ethereum and Cosmos clients run well on ARM64. Bitcoin Core has partial ARM64 coverage. Solana's validator/RPC requirements assume high-end x86_64 hardware; verify the current client binaries before buying anything.