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THE FEUTEX TOOLKIT

Macrame Cord Length from Weight

Estimate remaining cord length from a weighed sample and determine project capacity with a reserve.

Crafts workspace● Runs in your browser
01 Your input
02 Your result
View or copy raw result data
FormulaEstimated remaining length = spoolMass*sampleLength/sampleMass; Complete projects after reserve = Math.floor(Math.max(0,spoolMass*sampleLength/sampleMass-reserve)/project)

Made for real tasks

  • Estimate remaining cord length from a weighed sample and determine project capacity with a reserve.
  • Compare an alternative set of measurements without uploading personal data.
Explore step-by-step workflows →

Worked example

Inputs

Sample cord length
5 m
Sample cord mass
40 g
Net remaining cord mass
800 g
Cord per project
18 m
Cord reserve
10 m

Expected results

Estimated remaining length
100 m
Complete projects after reserve
5 projects

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 sample cord length, sample cord mass, net remaining cord mass, cord per project, and cord reserve in the displayed units.
  2. Calculate and use each labeled result for macrame cord length from weight. Compare the result with a measured sample before committing materials.

Try this example

{
  "sampleLength": 5,
  "sampleMass": 40,
  "spoolMass": 800,
  "project": 18,
  "reserve": 10
}

Accuracy and scope

Weigh cord without its core; humidity, diameter variation and knots affect the estimate.

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.