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THE FEUTEX TOOLKIT

Exponential Trend Doubling or Halving Time

Translate a continuous fitted log-growth coefficient into a multiplicative trend timescale.

Math workspace● Runs in your browser
01 Your input
02 Your result
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FormulaTimescale = log(2)/abs(rate); Projected = current*exp(rate*time)
Sources and model references

Made for real tasks

  • Translate a continuous fitted log-growth coefficient into a multiplicative trend timescale.
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Worked example

Inputs

Continuous log-growth rate
0.05 1/time
Current level
100 number
Projection horizon
10 time

Expected results

Timescale
13.86294361 time
Projected
164.8721271 number

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 continuous log-growth rate, current level, projection horizon.
  2. Use the displayed units and confirm the model assumptions.
  3. Calculate and compare the outputs against your input scenario.

Try this example

{
  "rate": 0.05,
  "current": 100,
  "time": 10
}

Accuracy and scope

Positive rate yields doubling time; negative rate yields halving time. Constant exponential trend is an assumption, not a forecast guarantee.

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.