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TechnologyGenerated accuracy model review: 2026-05-06

AWS S3 Storage Cost Calculator accuracy and testing

This page documents how Calwarden builds trust for this calculator: source notes, regression-style default tests, limitations, assumptions, unit handling, rounding, and visible change history.

Formula source

  • Monthly cost = storage GB * storage price + PUT requests / 1000 * PUT price + GET requests / 1000 * GET price + egress GB * egress price + retrieval GB * retrieval price.

Test cases

Default input regression check

Generated from the checked-in default inputs and calculate function.

Inputs

  • Average Storage: 5,000 GB
  • Storage Price: 0.02 $/GB-mo
  • PUT-like Requests: 250,000
  • PUT Price: 0.01 $/1k
  • GET-like Requests: 5,000,000
  • GET Price: 0 $/1k
  • Monthly Egress: 1,000 GB
  • Egress Price: 0.09 $/GB
  • Retrieval Volume: 0 GB
  • Retrieval Price: 0 $/GB

Expected outputs

  • Monthly Cost: $208.25
  • Storage Cost: $115.00
  • Request Cost: $3.25
  • Transfer and Retrieval Cost: $90.00

Known limitations

  • This page documents the checked-in calculator logic and does not certify results for every real-world edge case.
  • Use the result as a planning estimate unless the calculator page states a stricter purpose.

Assumptions

  • All prices are flat user-entered rates.
  • Tiered pricing, free tiers, minimum object sizes, and lifecycle transitions are not inferred.
  • No files or bucket data are uploaded.

Unit handling

  • Average Storage accepts values in GB.
  • Storage Price accepts values in $/GB-mo.
  • PUT-like Requests accepts numeric values.
  • PUT Price accepts values in $/1k.
  • GET-like Requests accepts numeric values.
  • GET Price accepts values in $/1k.
  • Monthly Egress accepts values in GB.
  • Egress Price accepts values in $/GB.
  • Retrieval Volume accepts values in GB.
  • Retrieval Price accepts values in $/GB.
  • Monthly Cost is displayed as currency.
  • Storage Cost is displayed as currency.
  • Request Cost is displayed as currency.
  • Transfer and Retrieval Cost is displayed as currency.

Rounding rules

  • Number displays use up to 2 decimal places in the calculator UI.
  • Currency outputs are displayed with standard US dollar formatting.
  • Input precision follows configured step values where provided.

Version history

1.0.0 - 2026-05-06

Generated accuracy and testing page from the current aws-s3-storage-cost-calculator calculator definition.

Change log

2026-05-06

Published default regression test documentation and metadata fallbacks for AWS S3 Storage Cost Calculator.

Calculator transparency

Accuracy pages are generated from checked-in calculator definitions and can be upgraded with curated review metadata over time.

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