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TechnologyGenerated accuracy model review: 2026-05-06

VPN Speed Loss 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

  • Loss percent compares VPN speed to baseline speed. Transfer minutes = file GB x 8192 megabits / Mbps / 60.

Test cases

Default input regression check

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

Inputs

  • Baseline Speed: 300 Mbps
  • VPN Speed: 180 Mbps
  • Transfer Size: 5 GB

Expected outputs

  • Speed Loss: 40.00%
  • VPN Transfer Time: 3.7925925925925923
  • Baseline Transfer Time: 2.2755555555555556
  • Extra Time: 1.5170370370370367

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

  • Inputs are user-entered because pricing, deadlines, policies, and technical limits vary.
  • Calculations run locally in your browser and do not store passwords, incidents, network designs, or security program data.
  • This is planning math, not security assurance, legal advice, or a substitute for testing.

Unit handling

  • Baseline Speed accepts values in Mbps.
  • VPN Speed accepts values in Mbps.
  • Transfer Size accepts values in GB.
  • Speed Loss is displayed as a percentage.

Rounding rules

  • Number displays use up to 2 decimal places in the calculator UI.
  • Percent outputs are displayed with two decimal places.
  • Input precision follows configured step values where provided.

Version history

1.0.0 - 2026-05-06

Generated accuracy and testing page from the current vpn-speed-loss-calculator calculator definition.

Change log

2026-05-06

Published default regression test documentation and metadata fallbacks for VPN Speed Loss 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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