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Finance & Governance · Free

FinOps Estimator

Estimate cloud spend from workload units, supplied prices and explicit uncertainty.

Works withChatGPTClaude

Version 1.0.0

Use it for

  • Estimate cloud costs for a new design.
  • Compare the cost of architecture options.

What you get

  • Low, base and high cost estimates with the formulas shown.
  • The main cost drivers and how sensitive the total is to them.
  • Costs left out, and controls to keep spend on track.

A place to start

Example requests

Estimate monthly cost using only the service prices and workload figures I provide.

Review my FinOps Estimator output for gaps and unsafe assumptions.

Connect and use

This free tool is a set of written instructions, a checklist and a template that guide your AI assistant through the job. It works in any assistant and never calls our servers.

  1. Choose Copy instructions above, or view them first.
  2. ChatGPT or Claude: create a Project and paste them into the project instructions, so every chat in that project uses this tool. Or paste them at the start of a single chat.
  3. Ask your question or use an example request, and add the details it asks for.