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THE FEUTEX TOOLKIT

Swimming Stroke Index

Calculate velocity, stroke length and their product from a measured length.

Sports workspace● Runs in your browser
01 Your input
02 Your result
View or copy raw result data
FormulaVelocity = length/seconds; Stroke length = length/strokes; Index = length*length/(seconds*strokes)

Made for real tasks

  • Calculate velocity, stroke length and their product from a measured length.
  • Compare two scenarios by changing the inputs and rerunning the tool.
Explore step-by-step workflows →

Worked example

Inputs

Length
25 m
Seconds
20 s
Strokes
16 strokes

Expected results

Velocity
1.25 m/s
Stroke length
1.5625 m/stroke
Index
1.953125 m²/(s·stroke)

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 length, seconds, strokes.
  2. Use consistent units shown beside each input. Run the calculation and review the assumptions below.

Try this example

{
  "length": 25,
  "seconds": 20,
  "strokes": 16
}

Accuracy and scope

Use one consistent arm-cycle counting convention; push-offs affect comparisons. Not a health or performance diagnosis.

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.