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THE FEUTEX TOOLKIT

Cycling Computer Rollout Calibration

Calibrate wheel circumference from measured ground distance and revolutions.

Sports workspace● Runs in your browser
01 Your input
02 Your result
View or copy raw result data
FormulaCircumference = 1000*distance/revolutions; Correction = 100*(1000*distance/revolutions/old_setting-1)

Made for real tasks

  • Calibrate wheel circumference from measured ground distance and revolutions.
  • Compare two scenarios by changing the inputs and rerunning the tool.
Explore step-by-step workflows →

Worked example

Inputs

Distance
10.55 m
Revolutions
5 revolutions
Old setting
2100 mm

Expected results

Circumference
2110 mm
Correction
0.4761904762 %

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

  1. Enter distance, revolutions, old setting.
  2. Use consistent units shown beside each input. Run the calculation and review the assumptions below.

Try this example

{
  "distance": 10.55,
  "revolutions": 5,
  "old_setting": 2100
}

Accuracy and scope

Measure ground travel over whole wheel revolutions under representative load. No tire slip; correction compares the measured circumference to the old wheel setting, not GPS accuracy.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.