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Unit ConvertersGenerated accuracy model review: 2026-05-06
Speed Converter 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
- Conversions are based on standard ratios: * **1 MPH** = 1.60934 KPH * **1 Knot** = 1.15078 MPH * **1 m/s** = 3.6 KPH
Test cases
Default input regression check
Generated from the checked-in default inputs and calculate function.
Inputs
- Speed: 60
- From: Miles/Hour (mph)
- To: Km/Hour (km/h)
Expected outputs
- Converted Value: 96.56
- Logic: 1 mph ≈ 1.6093 kph
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
- The calculator uses fixed conversion factors for the supported units and treats the value as scalar speed.
- Knots are interpreted as nautical miles per hour, and meters per second is treated as the SI base speed unit here.
- This tool does not account for pacing formats, elevation changes, wind, or local conditions that affect travel time.
Unit handling
- Speed accepts numeric values.
- From accepts one of the configured options.
- To accepts one of the configured options.
Rounding rules
- Number displays use up to 2 decimal places in the calculator UI.
Version history
1.0.0 - 2026-05-06
Generated accuracy and testing page from the current speed-converter calculator definition.
Change log
2026-05-06
Published default regression test documentation and metadata fallbacks for Speed Converter.
Calculator transparency
Accuracy pages are generated from checked-in calculator definitions and can be upgraded with curated review metadata over time.