Interactive workbench
EKS Node Sizing Calculator
Match workload profiles to realistic EKS node groups and instance plans.
What EKS worker shape and node count can safely place this pod fleet without overpaying?
How to use & What you leave with
Configuration Suite
Surgically adjust parameters for EKS Node Sizing Calculator
Methodology
This tool automates the core architectural decisions required for high-performance scale. It eliminates spreadsheet errors and gut feeling by using post-2026 optimized algorithms.
Output Precision
- Surgical accuracy for production loads
- Ready for direct export to Terraform/Docs
Primary EC2 instance for managed node groups.
Total pods that need scheduling across the node group.
Kubernetes CPU request for each pod.
Kubernetes memory request for each pod.
PRO TIP: Changes reflect in real-time. Use shortcuts for fast navigation.
Recommended nodes
6
With surge buffer
7
Worker spend
$968/mo
Fargate alternative
$800/mo
Bottleneck
CPU
Pod density
26%
Key Insights
- m6i.xlarge with 58 max pods/node. Sizing across CPU (6), memory (3), pod density (2) → 6 nodes. Bottleneck: CPU.
- Utilization: CPU 94%, memory 47%, pod density 26%. High utilization — consider larger instances.
- EC2 managed nodes at $829/mo are more cost-effective than Fargate at $800/mo.
Actionable Next Steps
- Review the instance comparison table to find the optimal cost/performance balance.
- Stick with EC2 managed nodes — better economics at this scale.
- Export the eksctl config and integrate into your GitOps pipeline.
Analysis Metrics
Benchmarks & Comparison
| Instance | vCPU | Memory | Max pods | Nodes | Monthly cost | Bottleneck |
|---|---|---|---|---|---|---|
| t3.medium | 2 | 4 GB | 17 | 12 | $359 | CPU |
| m6i.large | 2 | 8 GB | 29 | 12 | $829 | CPU |
| m6i.xlarge | 4 | 16 GB | 58 | 6 | $829 | CPU |
| c6i.2xlarge | 8 | 16 GB | 58 | 3 | $734 | CPU |
Actionable Exports
Decision Log
This tool automates the core architectural decisions required for high-performance scale.
Surgical Precision
Eliminate spreadsheet errors and gut feeling with post-2026 AI.
Seamless Workflow
Move results straight to Terraform, Jira, or Confluence.
The Lab Result
Post-2026 Audit Complete
This workflow has been surgically optimized by AutonomOps AI for Architecto Power Users.
FAQ
Questions teams ask before they adopt this workflow.
When should teams use EKS Node Sizing Calculator?
This tool is most useful when the team needs an answer they can carry into diagrams, documentation, and design reviews without rewriting the same context three times.
Who benefits most from EKS Node Sizing Calculator?
Architects, platform teams, and technical leads benefit most because they need explicit assumptions, clear review cues, and artifacts that survive implementation handoff.
How does EKS Node Sizing Calculator connect back to Architecto?
Architecto uses the free content surface as the top of a larger workflow. Once the team needs richer diagrams, schema visibility, change comparison, or technical documentation, the matching product module keeps the same decision context alive.
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Comparison
Architecto vs Structurizr
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Continue in Architecto
Use the exported artifact from EKS Node Sizing Calculator as the first review input, then move into Cost Estimator when the team needs a deeper design, diagram, or review workflow.
Open matching moduleRelated modules